Verifiable receipt 880d474d - receipt_publication result | Zambo

✓ This result hasn’t changed since it was saved.

Saved:
What was asked: The request recorded for this receipt.

Zambo is the verifiable work layer for AI.

Zambo is the verifiable work layer for AI. Verifiable receipt for a receipt_publication call on Zambo: {"schema":"zambo.redacted-receipt-publication/1","redacted_projection":true,"source_receipt_id":"90a

Observed result

schema: zambo.redacted-receipt-publication/1 redacted projection: true source receipt id: 90ae18e6-fc10-474c-8267-c5df92202250 source output hash: sha256:f9c7776b0036344f2c936b4595875cee54608cac34fb93c1533431fcec0fcbe4 source tool: handover publication notice: This is a newly committed redacted publication copy, not the original tool output. The original commitment is unchanged and its private bytes are withheld. output: {"handover_id":"0ee3128e-044b-4abd-b4ef-32193d1dfcc1","url":"https://zambo.dev/handover/0ee3128e-044b-4abd-b4ef-32193d1dfcc1","reused":false,"agent_id":"agent-ea847f974c5961b5ef4ef6b3","agent_url":"https://zambo.dev/agent/agent-ea847f974c5961b5ef4ef6b3","badge_url":"https://zambo.dev/badge/agent-ea847f974c5961b5ef4ef6b3.svg","share_text":"Here's the handover for Test Client: Drafted, reviewed and finalized launch email. https://zambo.dev/handover/0ee3128e-044b-4abd-b4ef-32193d1dfcc1 Each listed step has a verifiable receipt you can check in your browser.","workflow_receipt_url":"https://zambo.dev/run/3570b863-242a-45b2-ad13-08d5db5134af","verify_url":"https://zambo.dev/api/v2/receipt/3570b863-242a-45b2-ad13-08d5db5134af/verify","steps":7,"ai_use_statement":"AI use: v62check helped with 3 of 7 steps. See the listed receipts.","graph":{"aer":"draft-zambo-aer1-20","edges":[{"to":"n2","from":"n1","kind":"next"},{"to":"n3","from":"n2","kind":"next"},{"to":"n4","from":"n3","kind":"next"},{"to":"n5","from":"n4","kind":"next"}],"nodes":[{"ai":{"name":"Zambo rubric","used":false},"id":"n1","seal":{"reason":"An eligible pass is required to seal this workflow. Individual receipts remain available.","sealed":false},"type":"plan","label":"Plan bounded checks","receipt":"3125db79-54e2-4177-b611-c65d9d0271b0"},{"ai":{"name":"v62check","used":true},"id":"n2","seal":{"reason":"An eligible pass is required to seal this workflow. Individual receipts remain available.","sealed":false},"type":"do","label":"handover_submission","receipt":"6ef7d87a-7073-474a-8bb8-115483db23e2"},{"ai":{"name":"Zambo rubric","used":false},"id":"n3","seal":{"reason":"An eligible pass is required to seal this workflow. Individual receipts remain available.","sealed":false},"type":"check","check":{"what":"Bounded writing rubric: sentences <=40 words, no 15-letter all-caps run, and one request keyword appears","reason":"Rubric review only; tone and semantic fulfillment need human review.","result":"passed"},"label":"Review draft using a bounded rubric","receipt":"1f1e8289-b422-4ee9-bc2b-d74b6e340ae6"},{"ai":{"name":"Zambo rubric","used":false},"id":"n4","seal":{"reason":"An eligible pass is required to seal this workflow. Individual receipts remain available.","sealed":false},"type":"prove","label":"Collect observed receipts","receipt":"00eb01c0-b5ae-4962-a44b-ccc4690d3277"},{"ai":{"name":"Zambo rubric","used":false},"id":"n5","seal":{"reason":"An eligible pass is required to seal this workflow. Individual receipts remain available.","sealed":false},"type":"handover","label":"Prepare proof for handover","receipt":"551eecc8-1e2e-45c8-9865-145557d6021c"}],"access":{"mode":"first_free"},"issues":[],"schema":"zambo.graph/1","retries":{"max":2,"used":0},"sources":{"resolved":0,"not_checked":0,"not_resolved":0},"summary":"Checked 1 thing, fixed 0, all receipts attached.","template":"write-and-review","workflow_id":"0a07a552-295d-45a3-be07-e22ba2ebcf96","planned_scope":{"note":"Next steps are planned work, not recorded executions. This loop checks only the supplied work.","total":3,"not_checked":3}},"progress":"Checked 1 thing, fixed 0, all receipts attached.","graph_url":"https://zambo.dev/handover/0ee3128e-044b-4abd-b4ef-32193d1dfcc1/graph.json","sources":{"resolved":0,"not_resolved":0,"not_checked":0},"warnings":[],"acceptance_url":"https://zambo.dev/handover/0ee3128e-044b-4abd-b4ef-32193d1dfcc1/acceptance.json","release_hint":"hold","ais":["v62check","No AI used"],"not_checked":["The supplied work was saved, not independently executed or checked."],"shield":"pass","visibility":"public","redactions":0,"owner_url":"https://zambo.dev/handover/0ee3128e-044b-4abd-b4ef-32193d1dfcc1"}

This is the saved result preview, not proof that the answer was correct.

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Show technical provenance details

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 this receipt?

This is a verifiable receipt for a journal entry. It confirms receipt, redaction, timestamping, and chaining. It does not attest to execution.

What the receipt can and cannot prove

What is this?

Zambo's receipt store reports a journal entry from an agent or local hook. The SHA-256 commitment covers the receipt bytes. The provenance label is only a claim, not proof of issuer identity or that the reported action happened.

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Show technical verification checks

Verification checks

  • SHA-256 commitment: Checked independently against the exact decoded bytes
  • Provenance binding: PASS; The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.
  • Metadata binding: PASS; metadata_hash matches the canonical metadata block.
  • 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: 2026-10-18T13:58:58.701Z; external immutability is not checked

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  • CursorPaste into ~/.cursor/mcp.json.
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Show receipt data and verification evidence

Committed provenance claim

LOGGED BY AGENT

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID
880d474d-49ed-5ec3-a265-b31a331a2d80
SHA-256 output hash
sha256:e075743c18a628c42b534bcd1d33b050fcf503e8808cf4369edf12fb69be79b9
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
receipt_publication
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:6df9bd57dd992e5f91140b314ed108e94d58579874ef45b10740edc0cd95f9aa
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
bb95e922b25ccc686b4af82b82f9a298748b64a2b864f85263a136b3b5c3d198
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":"2026-10-18T13:58:58.701Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:e075743c18a628c42b534bcd1d33b050fcf503e8808cf4369edf12fb69be79b9","receipt_uuid":"880d474d-49ed-5ec3-a265-b31a331a2d80","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: commitment matched; issuer, signature and chain not checked. 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.

Embed this receipt

Markdown

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HTML

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