Start with Agent Intent ≠ Venue Reality.
One product.
One evidence trail.
Last Known Book begins after an unexpected execution. It reconstructs DreamDEX venue reality, separates observed facts from inference, and allows only bounded evidence-backed containment.
See the whole argument fast.
The quickest path is intentionally behavior-first: open the case, see the venue-native reveal, verify the real Shannon proof, then inspect the source and SDK feedback only if you want the deeper audit trail.
Land the reveal: “This wasn't a whale. It was a mint.”
PostOnly rested, zero fills, exact cancel, collateral restored.
Testnet technical + behavior proof, not production evidence.
Receipts over claims.
Judge-facing redacted proof plus the live read-only network verification rail.
Open proof in product → 02 · COMMITMENTTamper-evident proof commitmentPublic commitment to the private Packet 003 bundle without wallet or transaction identifiers.
Open commitment ↗ 03 · SOURCEGitHub + deterministic CIImplementation, fixtures, tests, replay generation and public/private evidence boundaries.
Open repository ↗ 04 · ECOSYSTEMSDK / docs feedbackConcrete findings on market identity, bounded approvals, units and PostOnly reconciliation.
Open feedback source ↗Technical behavior and operational containment on Somnia Shannon: exact pre-write gating, a bounded PostOnly order, zero fills, `OrderPlaced → OrderRested`, exact returned-order cancellation, `OrderCancelled`, and collateral restored exactly. It does not demonstrate production reliability, ROI, MTTR improvement, incident prevalence or profitability.
The incident contract.
The product does not optimize for transaction count. It reconstructs what happened, classifies what is known, and only permits an action when grounded predicates justify it.
Observed evidence can constrain automation. Inference can request more evidence. Unknown can stop the system. DreamDEX-specific semantics — marketId, rolling pool binding, MINT_A_PAIR, resting escrow, lifecycle and native order events — are the causal vocabulary rather than sponsor decoration.
The objections we expect.
Isn't this just analytics?DIFFERENTIATOR
No. Analytics describes a market. Last Known Book reconstructs one unexpected execution, identifies the DreamDEX-native cause, decides whether a corrective action is justified, and reconciles closure.
Why not just inspect a block explorer?PRODUCT NEED
An explorer shows transactions. It does not reconstruct Agent Intent vs Venue Reality, classify venue-specific cause, separate truth classes, apply an authority policy and close the incident as one evidence contract.
Why does this require DreamDEX?SPONSOR FIT
The mechanism depends on DreamDEX Event Contract semantics: durable marketId identity, rolling pool binding, MINT_A_PAIR, escrow behavior, lifecycle state and native order events. Removing those semantics collapses the current causal model.
What is real versus replayed?TRUTH BOUNDARY
Four casefiles are deterministic replays built from captured real Shannon incident evidence. Separately, Packet 003 is a Last Known Book-originated real Shannon testnet placement/rest/exact-cancel/reconciliation proof.
Did the real Packet 003 order trade?PROOF SCOPE
No. It was deliberately PostOnly, rested with zero fills, then the exact returned order was cancelled. That proves bounded authority and reconciliation, not profitable execution.
Is WRITE REFUSED a failure?SAFETY
No. Refusal is the correct behavior when evidence does not justify a write. A blind compensating transaction can turn one confusing incident into two.
What business outcome is proven?CLAIM DISCIPLINE
Operational containment is demonstrated on Shannon testnet. MTTR improvement, ROI, incident prevalence and production reliability are not yet proven and are not claimed.
Go as deep as you want.
The human-final-gate submission copy and truth boundaries.
Open on GitHub ↗ RAW SOURCERequirements → evidenceThe explicit MUST / MUST_NOT coverage ledger.
Open on GitHub ↗ FILM CONTRACT2:35 demo scriptThe canonical judge story for the final encoded film.
Open source ↗ LIVEShannon readbackRead-only chain/head/receipt verification from the live product.
Open live panel →