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Observed result

{"risk_level":"medium","red_flags":[{"clause":"Failure to deliver incurs a 10% penalty per week.","issue":"Penalty is steep and uncapped, potentially imposing excessive liability on Party A.","severity":"high","suggested_fix":"Cap the weekly penalty (e.g., 2% per week) and set a maximum total penalty."},{"clause":"[No payment terms are defined]","issue":"The agreement does not specify when or how Party B must pay for the software, creating uncertainty and risk of non‑payment.","severity":"high","suggested_fix":"Add a clear payment schedule, amounts, milestones, and invoicing procedures."},{"clause":"[No definition of \"software\" or acceptance criteria]","issue":"Ambiguity about what constitutes satisfactory delivery could lead to disputes.","severity":"medium","suggested_fix":"Define the software scope, deliverables, and an acceptance testing process."},{"clause":"[No termination clause]","issue":"Neither party has a right to terminate for breach or convenience, limiting exit options.","severity":"medium","suggested_fix":"Insert termination rights for material breach and a convenience termination provision with notice periods."},{"clause":"[No limitation of liability]","issue":"Liability could be unlimited, exposing parties to disproportionate risk.","severity":"medium","suggested_fix":"Add liability caps (e.g., total liability not to exceed the contract value) and exclude indirect damages."}],"negotiation_points":["Add detailed payment schedule and amounts","Cap or reduce the 10% weekly penalty and set a maximum","Define the software deliverables and acceptance criteria","Include termination rights for breach and convenience","Add confidentiality and IP ownership provisions","Specify governing law and jurisdiction","Insert limitation of liability and indemnification clauses","Add force‑majeure language"],"plain_english_summary":"Party A promises to deliver software by December 1, 2026; if they are late they must pay a 10% per week penalty. The draft otherwise omits payment terms, definitions of the software, acceptance procedures, termination rights, liability limits, confidentiality, governing law and other standard protections.","what_you_can_push_back_on":["Penalty rate and lack of a cap","Absence of any payment terms","Undefined scope and acceptance criteria","No termination provisions","No limitation of liability","Missing governing law and jurisdiction","No confidentiality or IP clauses"],"overall_verdict":"The contract is medium risk for the signing party; it lacks essential commercial and protective provisions and contains a harsh penalty clause, so significant revisions are recommended before signing.","disclaimer":"AI analysis — not legal advice. Consult a lawyer for binding decisions."} $0.99 Day Pass · 24h access · USDC on Base — activate with day_pass_activate.

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Provenance for every timeline entry

  • EXECUTED BY ZAMBOZambo ran the tool call itself.
  • OBSERVED VIA GATEWAYA Zambo gateway observed request and response bytes from the named external executor. Zambo did not run that external action.
  • LOGGED BY AGENTAn agent or local hook reported the action. Zambo attests that the record is unchanged since logging, not that the action happened as described.

Private agent reasoning, built-in client actions, and direct calls to unrelated MCP servers are not included unless an agent or gateway reports them.

What is an execution receipt?

An execution receipt is a public record of a reported AI agent tool call. Its byte commitment and provenance claim can be checked independently; neither alone authenticates the issuer. Read the canonical definition of an AI agent execution receipt.

What the receipt can and cannot prove

What is this?

Zambo's receipt store reports a tool call and records its result. The SHA-256 commitment covers the exact canonical bytes. The provenance label is bound to v0.4 receipt bytes when that check passes, but no pinned signature or trusted issuer key is checked. An anchor can timestamp a fingerprint; it does not authenticate the issuer.

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Verification checks

  • SHA-256 commitment: Checked independently against the exact decoded bytes
  • Provenance binding: LEGACY; legacy receipt, provenance not cryptographically bound
  • Metadata binding: LEGACY; legacy receipt, metadata is not cryptographically bound
  • Issuer authentication: NOT CHECKED; no pinned signing key or trusted issuer was supplied
  • Signature: NOT CHECKED; no Ed25519 signature or pinned key is supplied
  • Chain: NOT CHECKED; no append-only chain proof is validated
  • Stored timestamp: 2026-10-06T03:04:51.710Z; external immutability is not checked

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Show receipt data and verification evidence

Committed provenance claim

EXECUTED BY ZAMBO

legacy receipt, provenance not cryptographically bound

Receipt ID
d9db96ef-0cd3-49b2-8e48-f045b11a5a4a
SHA-256 output hash
sha256:b0ad323b46caaaac7d91ef87a54f52aeffca7076505571007bd8e6b62ac1df00
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.3
Tool name
contract_scan
Tool version
4.0.0
Permission scope
public
Caller type
anonymous
Caller ID
sha256:462e58a7c71e2908382513a2b3aa6526ad882e315da5746728c943130aea6da4
Declared side effects
none
Side-effects schema
zambo-side-effects/1
Declaration hash
sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee

This records what the server-side tool contract declared at call time. It does not independently verify that a downstream side effect happened.

Bound upstream evidence

Status
no_upstream_bytes_captured
Evidence SHA-256
unavailable
Byte length
unavailable

Neutral Nostr anchor

Event ID
d9fc4f7e901d37f471ba17358e89e9491043b51a974bdb5b8e7752fc71266d66
Anchor status
partial
Public key
e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

Relay hints: wss://relay.damus.io · wss://nos.lol · wss://relay.primal.net

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-10-06T03:04:51.697Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:b0ad323b46caaaac7d91ef87a54f52aeffca7076505571007bd8e6b62ac1df00","receipt_uuid":"d9db96ef-0cd3-49b2-8e48-f045b11a5a4a","schema_version":"zambo-receipt-anchor/1"}

Anchor status "partial": Published to some configured relay targets; publication was not confirmed by every configured relay.

Check this hash yourself

Receipt commitment: verification_failed. This checks the saved bytes, not whether the answer was correct. Recompute the SHA-256 commitment in your browser. Open the API v2 JSON response to inspect the machine-readable checks. See the Nostr anchor event on a public viewer. The fingerprint is timestamped outside Zambo too.

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Markdown

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