Every node listed runs in your browser now.
Every OpenChainGraph tool exports a verifiable artifact. Each artifact carries an execution_hash: SHA-256 over sorted-key JSON of the policy parameters and output payload, computed in-browser via WebCrypto. No data leaves the browser. Every decision is reproducible, traceable, and chainable; the output of one tool is the precondition for the next. Spec v0.4.1 adds Compute Binding (server-side kernels make every gpu:false node agent-native over MCP) and Export Profiles (the chaingraph_export umbrella: xlsx / pdf / csv / xbrl / vc, the last a W3C Verifiable Credential), atop the v0.3 ISO 20022 / LEI·did:key / OKF layer and the v0.2 provenance envelope (W3C PROV-DM, in-toto, Ed25519, OpenTelemetry, DCAT 3.0). Every addition sits outside the hash preimage.
Every live deterministic node above: a real risc0 groth16-bn254 receipt, journal byte-identical to the kernel's own compute() output, independently replayable and verifiable offline.
7 OpenChainGraph nodes covering AP2 Foundations, Credit-Scoring & DORA/AMLA Conformity.
11 OpenChainGraph nodes covering x402, ACP, EUDI Wallet & Basel 3.1 Reporting.
2 OpenChainGraph nodes covering PSD3 / PSR Readiness.
15 OpenChainGraph nodes covering Agentic Checkout & Multi-Rail Protocol Comparison.
5 OpenChainGraph nodes covering DORA readiness, Register of Information (RoI) building, and ICT incident classification.
6 OpenChainGraph nodes covering Cross-Protocol Agent Commerce & A2A/MCP Attestation.
9 OpenChainGraph nodes covering Tempo Network. → Guide hub →
6 OpenChainGraph nodes covering Circle Arc Network. → Guide hub →
4 OpenChainGraph nodes covering US Treasury Clearing (FICC). → Guide hub →
7 OpenChainGraph nodes covering Digital Trade Corridor (MLETR / eBL / eUCP / eURC). → Guide hub →
4 OpenChainGraph nodes covering Wholesale Tokenized Settlement (WTS). → Guide hub →
4 OpenChainGraph nodes covering Agent Economy Runtime (AER). → Guide hub →
4 OpenChainGraph nodes covering AI Governance & Conformity (EU AI Act). → Guide hub →
9 OpenChainGraph nodes covering Carbon & Climate Computational Compliance. → Guide hub →
9 OpenChainGraph nodes covering EU/UK/CH T+1 & CSDR Settlement Discipline. → Guide hub →
5 OpenChainGraph nodes covering Post-Quantum Cryptography Migration. → Guide hub →
10 OpenChainGraph nodes covering Sanctions & Export-Control Screening. → Guide hub →
10 OpenChainGraph nodes covering MiCA CASP Lifecycle. → Guide hub →
6 OpenChainGraph nodes covering Tempo / Canton / Arc Extension.
11 OpenChainGraph nodes covering Supply-Chain Traceability, DSCSA, FSMA 204 & Digital Product Passport.
8 OpenChainGraph nodes covering C2PA Content Provenance & AI-Act Marking.
8 OpenChainGraph nodes covering Web Bot Auth, Agent Directory & Key-Rotation Trust.
6 OpenChainGraph nodes covering Software Supply-Chain Integrity, SBOM, SLSA & OpenVEX.
6 OpenChainGraph nodes covering NIS2 Cybersecurity & Operational Resilience.
8 OpenChainGraph nodes covering MCP Governance & Agent Authorization Lifecycle.
6 OpenChainGraph nodes covering EMIR Refit Trade Reporting.
6 OpenChainGraph nodes covering ViDA, VAT in the Digital Age.
6 OpenChainGraph nodes covering EU Deforestation Regulation (EUDR).
6 OpenChainGraph nodes covering AI Governance Frameworks, ISO 42001, NIST AI RMF & GPAI.
8 OpenChainGraph nodes covering Insurance, IFRS 17 & Solvency II.
8 OpenChainGraph nodes covering IRRBB, Interest Rate Risk in the Banking Book.
6 OpenChainGraph nodes covering Client-Side Conversions.
16 OpenChainGraph nodes covering Content Licensing & Rights, Creative Commons, PIL & NFT Metadata.
4 OpenChainGraph nodes covering Prediction Markets & Perpetuals Analytics.
6 OpenChainGraph nodes covering US Mortgage Compliance Core.
6 OpenChainGraph nodes covering US Mortgage Agency & Government Loan Pricing.
11 OpenChainGraph nodes covering Fair Lending & Adverse Action.
5 OpenChainGraph nodes covering AI Decision Logs & Agent Audit Trail.
8 OpenChainGraph nodes covering Cross-Border Payments, CBPR+ / ISO 20022 Conformance.
5 OpenChainGraph nodes covering Remittance Disclosure & Corridor Economics.
8 OpenChainGraph nodes covering Insurance Underwriting & Claims STP.
6 OpenChainGraph nodes covering Corporate Treasury STP.
6 OpenChainGraph nodes covering Revenue Operations & Bank KYB STP.
12 OpenChainGraph nodes covering Onchain Derivatives & DeFi Analytics.
8 OpenChainGraph nodes covering Mandate Loop, Work-Mandate Compiler.
10 OpenChainGraph nodes covering Basel Endgame Capital & ACA Employer Compliance.
9 OpenChainGraph nodes covering Agreements, Reputation & Reserve-Proof Attestation.
8 OpenChainGraph nodes covering Retirement Planning & Decentralized-Identity Verification.
7 OpenChainGraph nodes covering Fund NAV Accuracy & Private-Input Compliance Screens.
1 OpenChainGraph node covering Credential Revocation Status.
5 OpenChainGraph nodes covering EVM Settlement Bridging & On-Ledger Screening.
7 OpenChainGraph nodes covering AIUC-1 Agent-Insurability Evidence.
4 OpenChainGraph nodes covering US State AI Compliance, TRAIGA, AB 2013 & SB 53.
7 OpenChainGraph nodes covering Robinhood Chain Tokenized-Equity Verification.
8 OpenChainGraph nodes covering Time-Value-of-Money Primitives.
1 OpenChainGraph node covering Amortization Schedule Builder.
13 OpenChainGraph nodes covering Consumer Lending & Payroll Calculators.
1 OpenChainGraph node covering Quantized Credit Model Scoring.
3 OpenChainGraph nodes covering Electronic Trade Records & Basel Output Floor.
8 OpenChainGraph nodes covering Bank Capital Ratios & IDV/KYC Evidence.
13 OpenChainGraph nodes covering Global Minimum Tax, Embedded Insurance & Cross-Border Fees.
3 OpenChainGraph nodes covering Rate-Shock Replay & Canton Network Economics.
9 OpenChainGraph nodes covering Agent Evidence Composers & Tempo Fee Mechanics.
2 OpenChainGraph nodes covering x402 v2 Migration.
2 OpenChainGraph nodes covering Crypto Margin & UMR/AANA Readiness.
1 OpenChainGraph node covering Evidence Bundle Tiering.
2 OpenChainGraph nodes covering GDPR Processor Agreements.
13 OpenChainGraph nodes covering Bank Prudential Risk, Large Exposures, CECL & VaR Backtesting, plus the SR 26-2 model passport lifecycle.
8 OpenChainGraph nodes covering Bank Regulatory Reporting, Call Report, Y-9C & FR 2052a, mapped to BCBS 239 Principle 2 footnote 16 (robust automated reconciliation where multiple models are in use), Principle 3 paragraph 36(c) (reconcile risk data to accounting data), and Principle 7 paragraph 53(a)-(c) (reconcile reports to risk data, inventory of validation rules, exceptions reports). Call Report edit checks are published by the FFIEC; FR 2052a validation and edit checks are not, since the Federal Reserve has said it expects banking organizations to independently develop their own validation checks and controls. These nodes model reconciliation and edit-check logic as functions over declared inputs; live scheduler state, front-end capture controls, and logical or physical model deliverables are not modelled here.
8 OpenChainGraph nodes covering SOX 404 / ICFR attribute sampling, segregation of duties, IPE integrity, control-test evidence, workpaper bundling, and audit recalculation testing.
2 OpenChainGraph nodes covering OECD BEPS Action 13 CbCR reporting and transfer-pricing interquartile benchmarking.
2 OpenChainGraph nodes covering BCBS 239 risk-data aggregation recompute and data-quality scorecarding.
2 OpenChainGraph nodes covering EMIR trade-repository pairing/matching adjudication and reconciliation-break ageing.
2 OpenChainGraph nodes covering published regulatory-report edit-check execution and period-over-period variance explanation.
2 OpenChainGraph nodes covering Swift CSCF control applicability and coverage plus assessor-independence checking.
2 OpenChainGraph nodes covering model-replication differencing and model test-battery execution.
2 OpenChainGraph nodes covering FATCA/CRS submission checking and responsible-officer remediation closure.
2 OpenChainGraph nodes covering vendor-neutral settlement-finality classification across settlement models, plus ledger-consensus finality for terminal-branch models (XRPL, Stellar).
1 OpenChainGraph node covering the validator quorum that could forge a cross-chain message.
1 OpenChainGraph node classifying where six Evergreen supervisory controls actually live: protocol-enforced, application-enforced, or absent.
1 OpenChainGraph node modeling an Avalanche Evergreen L1's continuous P-Chain fee TCO and the month its balance depletes.
1 OpenChainGraph node covering permissioned-validator add/remove/weight-change events as SOX/ICFR-shaped change-control evidence.
1 OpenChainGraph node classifying validator reward-manager recipients against a group ownership map, with a materiality verdict and draft ASC 850 / IAS 24 disclosure language.
3 OpenChainGraph nodes covering UK payment and e-money safeguarding reconciliation, method classification and audit evidence.
1 OpenChainGraph node covering the attested-artifact subject identifier for sealed outputs.
1 OpenChainGraph node covering dual-control certification evidence over a sealed subject.
2 OpenChainGraph nodes covering CARF/DAC8 reportable-user classification and status-message disposition.
1 OpenChainGraph node covering post-trade step timing classification against T+1 cutoffs.
1 OpenChainGraph node covering insured and uninsured deposit determination by ownership right and capacity.
1 OpenChainGraph node covering recomputation of a delegated authority bordereau from the file the coverholder sent, and utilisation of the binding authority limits the carrier holds.
2 OpenChainGraph nodes covering independent recomputation of a payment waterfall for a stated period, and the Article 5 due diligence evidence record an institutional investor is required to hold.
1 OpenChainGraph node covering the per-acceptance record that every condition of a conditional regulatory relief held, and what the capital consequence is if that relief is withdrawn. The regime label and every condition are caller-supplied, so a second regime runs on the identical shape.
8 OpenChainGraph nodes covering the evidence a government payment platform operator can hand an audit authority with no access to the operator's database: settlement of public money to the correct revenue line, build allocation and daily reconciliation attestations, audit trail completeness, bulk disbursement integrity, payment data migration completeness, operator exit data portability, and the settlement asset backing invariant.
3 OpenChainGraph nodes covering the controls that sit under a regulatory report before it is filed: whether each source system arrived in time to be in scope, whether declared balances close across every hop between systems, and whether the reported figure ties back to an independent general ledger.
5 OpenChainGraph nodes covering central counterparty core risk management: cross-CCP PQD comparison, default waterfall recompute, cover-2 sizing, member margin call lifecycle and client porting checks.
5 OpenChainGraph nodes covering evidence-assembly and recompute over an institution's own supplied data: consent-order and MRA remediation-commitment closure, AML lookback disposition/closure roll-up, an FDIC Part 370 output-file validator, a Reg W 23A/23B affiliate-transaction limit tester, and a QFC (12 CFR 371) recordkeeping-file validator.
4 OpenChainGraph nodes forming a composite exchange-assurance pack: a custody-segregation ratio, an asset/liability coverage check, a proof-of-reserves liabilities composer, and a best-execution recompute, none anchored to a single normative regime.
2 OpenChainGraph nodes covering FINRA SLATE Securities-Lending Reporting Readiness.
2 OpenChainGraph nodes covering DTCC Corporate Actions ISO 20022.
11 OpenChainGraph nodes independently recomputing narrow fiduciary and specialty obligations by hand: IOLTA/client-trust three-way reconciliation, PE fund LP-side waterfall distribution, securitization trustee report waterfall recompute, municipal-bond arbitrage rebate spending exceptions, UCP 600 letter-of-credit document examination, ASC 842/IFRS 16 lease schedule recompute, multi-order wage garnishment stacking, Section 16(b) short-swing profit disgorgement, certified-payroll prevailing-wage compliance, docket deadline sweep, and redline negotiation-round classification.
7 OpenChainGraph nodes covering Capital Markets Clearing & Settlement Recomputes.
3 OpenChainGraph nodes covering independent recomputation of the x402/EIP-3009 EIP-712 digest, signer recovery, and domain/nonce window checks that underlie a x402 payment authorization.
8 OpenChainGraph nodes covering EVM Token Standard Recomputation.
3 OpenChainGraph nodes covering Accounting Infrastructure: Amortization, Rule Versioning & Decision Trees.
3 OpenChainGraph nodes covering Segment Reporting & Income Tax Rate Reconciliation Disclosure.
v0.4 is additive and fully backwards-compatible: all v0.1–v0.3 artifacts remain valid and the execution-hash preimage is unchanged. It adds three things: Compute Binding, server-side kernels that let an agent call a gpu:false tool over MCP and get a verifiable artifact in one round-trip, no browser; Export Profiles, the chaingraph_export umbrella that renders a verified artifact as xlsx / pdf / csv / xbrl for human, pipeline, and regulator consumption, generated downstream of and excluded from the hash; and (v0.4.1) the Verifiable Credentials profile (§13.11), a deterministic W3C VC 2.0 view of any artifact, hash-anchored, no new proof. The v0.3 ISO 20022 / identity / OKF layer is carried forward below.
A registered server-side kernel computes a gpu:false node's decision and returns a verifiable v0.4 artifact in a single MCP round-trip. compute_capability declares dispatch; compute_mode records it. Zero-egress preserved.
Generated, hash-excluded renderings of a verified artifact (xlsx / pdf / csv / xbrl) served by the read-only export_artifact MCP tool. XBRL maps to EBA COREP (capital/liquidity) for regulator-ready submission. A view, never a fact.
An optional JSON-LD overlay maps payload fields (amount, party, agent) to ISO 20022 business elements plus the external code lists (ISO 4217 / 3166 / 9362 / 13616 / 17442). Aligned, not registered. The hash preimage is untouched.
📘 Integration guide →The suite as an OKF bundle: one markdown concept per tool, auto-generated from chaingraph.json. The narrative knowledge layer beside the DCAT catalog. Concepts are knowledge, never decision artifacts.
Optional ISO 17442 LEI on publisher / tool identity, and did:key as the recommended keyid, binding the provenance layer to regulator-grade legal-entity and self-describing signer identity.
A published @context URL makes every artifact interpretable by any W3C PROV processor (regulatory tooling, DORA/Basel audit platforms, and semantic web reasoners) with zero changes to the core schema.
An optional buildType URI identifies the exact hash construction algorithm (https://ainumbers.co/chaingraph/context/v0.2#WebCryptoSHA256 by default). Required if a vendor uses a non-standard preimage construction.
audit_signature is upgraded from a bare string to an in-toto Attestation Framework envelope: payloadType, base64url payload, and a signatures[] array. Compatible with Sigstore and Cosign verifiers.
Optional Ed25519 signing over the execution_hash (via WebCrypto Ed25519) adds authenticity to the hash's integrity. Any party can verify: regenerate the hash, verify the signature against the vendor's published public key.
execution_hash → spanId; parent_hashes[0] → parentSpanId; root → traceId. Decision chains appear in Datadog, Jaeger, or Grafana Tempo via a one-function adapter, with no new infrastructure required.
Every multi-step workflow in chaingraph.json, generator-maintained: new chains appear here automatically on the next regenerate.
// execution_hash = SHA-256 over sorted-key JSON of { policy_parameters, output_payload } { "@context": "https://ainumbers.co/chaingraph/context/v0.3/context.jsonld", // v0.3 — W3C PROV-DM alignment (ISO 20022 tools add iso20022-context.jsonld) "chaingraph_version": "0.3.0", "ap2_version": "1.0.0", "mandate_type": "compliance_mandate", // AINumbers internal taxonomy "semantic_profile": "iso20022:pacs.008-subset", // v0.3 — optional, ISO 20022 tools only "tool_id": "art-01-ap2-mandate-chain-validator", "tool_version": "1.0.0", "generated_at": "2026-06-12T14:30:00Z", "buildType": "https://ainumbers.co/chaingraph/context/v0.2#WebCryptoSHA256", // version-independent algorithm URI — unchanged in v0.3 "execution_hash": "sha256:abc123...", "chain": { "parent_hashes": [], // sha256: strings from upstream artifacts "parent_tool_ids": [], "chain_depth": 0 // 0 for root; max(parent depths) + 1 }, "policy_parameters": {}, // tool inputs — included in hash preimage "output_payload": {}, // tool outputs — included in hash preimage "compliance_flags": [], "audit_signature": { // in-toto ITE-6 envelope "payloadType": "application/vnd.openchain.graph+json;version=0.2", "payload": "<base64url canonical JSON of artifact minus audit_signature>", "signatures": [{ "keyid": "<Ed25519 key fingerprint>", "sig": "<base64url Ed25519>" }] } }
All 48 decision tools exposed via tools/call at mcp.ainumbers.co/mcp. Cloudflare Workers, StreamableHTTP transport, 41 named workflow chains, Analytics Engine telemetry.
Machine-readable graph index: every tool's MCP name, mandate_type, inputSchema pointer, chain edges (consumes/feeds). Primary LLMEO surface, linked from llms.txt. Download →
Template registry v1.1: one entry per mandate_type with regulatory citations, stochastic framing rules, escalation conditions, and template_body. Separately licensable. View →
All computation in-browser via WebCrypto and WebAssembly. No data transmitted. No analytics on inputs. No storage. CC BY 4.0; every file attribution-ready.
ART-01 validates AP2 v0.2 (FIDO Alliance / Google). ART-12 validates ACP (OpenAI / Stripe). The only tool suite covering both agentic payment protocol stacks.
chaingraph.json is linked from llms.txt and embedded as JSON-LD on this page. Designed for agentic engineers who fetch the graph index first before tool discovery.
Formal technical specification: artifact schema, hash preimage construction, JSON-LD @context, in-toto envelope, Ed25519 signing, OTel span mapping, DCAT 3.0 Graph Index, Compute Binding (§12), and Export Profiles (§13). Read the spec →
Every v0.3 artifact is a PROV entity (prov:wasGeneratedBy, prov:wasDerivedFrom). The OTel adapter maps execution_hash → spanId so decision chains appear in Datadog, Jaeger, or Grafana Tempo natively.
Animated walkthrough: 7 stages + hashing foundations: artifact creation, chain depth, agent verification, cross-vendor trust, W3C PROV-DM/@context, in-toto/Ed25519 signing, OTel span mapping. Popup quizzes at each stage. Open explainer →
Field-by-field map across the OpenAI×AWS AgentCore Payments cookbook, x402 v2, VPSF/STARK receipt drafts, ACP, AP2, ERC-8004, and MPP: what each protocol calls a concept, which AINumbers node verifies it, and what we do not assert. Open map →
Runs the OpenAI×AWS AgentCore Payments cookbook's own field shapes through the existing mandate-chain, x402-decoder, and settlement-receipt nodes, plus the x402 Spend Evidence Pack chain, to show what a finality-classified, hash-bound receipt looks like past the cookbook's own named gap. Open hub →
Edit a real OCG v0.4 artifact and watch the execution_hash recompute keystroke-by-keystroke using WebCrypto SHA-256. Tamper controls, character-level diff, and a hash playground demonstrating the avalanche effect. Open sandbox →
Click-to-compose a multi-step compliance workflow (Basel ICAAP). Watch parent_hash links auto-populate in live artifacts and visualize the DAG. Switch to Compare mode to see the legacy paper trail this replaces. Open builder →
Three real scenarios (ICAAP, fraud chargeback, trade finance) side-by-side: the legacy email/PDF audit trail versus hash-linked artifact chains. Written for CFOs, auditors, and regulators, with no technical background needed. Read comparison →
v0.4 adds chaingraph_export: generated, non-canonical renderings of an already-verified artifact. The xlsx profile produces a three-sheet analyst/board workbook. Exports are produced after execution_hash is fixed and excluded from the hash preimage, so the cryptographic anchor travels to the last mile intact. Read guide →
56 concepts for OCG artifacts across generative art, gaming, narrative, AI agents, physical installations, payments infrastructure, scientific computing, digital identity, and 12 regulated industry verticals, with OCG primitives and build-readiness for each. Explore concepts →
If your stack already uses one of these standards, here is how to connect it to OpenChainGraph v0.4.
Map OCG artifacts to PROV entities and activities via the JSON-LD @context. Query chains with SPARQL prov:wasDerivedFrom*. Read guide →
The buildType URI declares the exact hash algorithm. Satisfies SLSA Level 1 out of the box; Level 2–3 via in-toto envelope and Rekor. Read guide →
audit_signature is a full DSSE envelope. Validate the PAE, verify the Ed25519 sig, and slot OCG into any in-toto policy engine. Read guide →
Key generation (WebCrypto, Python, Cosign), keyid derivation, multi-signer co-sign patterns, and key rotation timeline. Read guide →
execution_hash → spanId, parent_hashes[0] → parentSpanId. Decision chains appear natively in Datadog, Jaeger, or Grafana Tempo. Read guide →
Optional v0.3 semantic profile maps payload fields (amount, party, agent) to ISO 20022 business elements + external code lists (ISO 4217/3166/9362/13616/17442). Aligned, not registered. Read guide →
The suite as an OKF bundle: one markdown concept per tool, auto-generated from chaingraph.json. The narrative knowledge layer beside the DCAT catalog. Read guide →
Append anchor_bindings to any OCG artifact to embed RFC 3161 timestamp receipts from Sigstore, DigiCert, Sectigo, or FreeTSA. The execution_hash is anchored without touching the integrity scope (§20). Try Anchor Suite →