OpenChainGraph Suite · ART-527 · Ledger Consensus Finality
Ledger Consensus Finality Classifier
Classifies a ledger-consensus position under a deadline-bounded-inclusion model (XRPL) or a federated-BFT model (Stellar SCP). Neither model fits a monotone tier ladder: XRPL resolves to one of several terminal branches (final success, a terminal tec fee-consuming failure, provable non-inclusion, or an unprovable-absence gap) with no rank between them, and Stellar SCP has no reorg tier at all once a transaction is externalized. The machine-readable field is an outcome branch, not a rank. If a counterparty asserts an outcome the evidence does not support, the claim is flagged as overstated.
Vendor NeutralParameters Only, No Chain TableDeterministic, No ClockTerminal Branches, Not a Ladder
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Ledger Consensus Position
Settlement model
Chain label (free text, echoed)
Free text only. This tool holds no chain list and no embedded validator-list (UNL) snapshot, so it cannot go stale when a network's validator set changes.
as_of_ts (epoch seconds, caller supplied)
The kernel never reads a clock. Evaluation time is an input so the result is reproducible.
Required tier (corridor policy cutoff, model outcome vocabulary)
Claimed tier (optional, what a counterparty asserts)
Deadline-Bounded Inclusion Parameters (XRPL)
submitted_at_ledger
last_ledger_sequence
included_in_ledger (blank = none)
ledger_validated
result_class
highest_validated_ledger
continuous_history_ok
continuous_history_ok is caller-attested: whether the server holds gap-free validated ledger history over the submission-to-deadline range. The kernel cannot verify this itself (no network); its absence is exactly what ABSENCE_PROOF_INCOMPLETE flags.
Federated BFT Parameters (Stellar SCP)
externalized
quorum_slice_trust_ok
issuer_clawback_enabled (optional)
time_bounds_max (optional, epoch seconds)
SCP has no reorg path once externalized: there is no pending-to-final challenge window to express. The residual risk is quorum-slice topology trust and, where clawback is enabled, issuer-level asset authority; neither is a consensus property.