Verifiable receipt 5d86c382 - zambo_universal result | Zambo

Observed result

{"status":"executed","primary_tool":"ghost_audit_site","executed":true,"executed_tools":["ghost_audit_site"],"result":{"audit_id":"9a6e33f6-b0ee-4303-b44a-d6b52e58994f","status":"started","url_audited":"https://agentprobe.org","stream_url":"https://zambo.dev/api/ghost-audit/9a6e33f6-b0ee-4303-b44a-d6b52e58994f/stream","download_url":"https://zambo.dev/api/ghost-audit/9a6e33f6-b0ee-4303-b44a-d6b52e58994f/download","pdf_url":"https://zambo.dev/api/ghost-audit/9a6e33f6-b0ee-4303-b44a-d6b52e58994f/pdf","stages":["RECON","INFRASTRUCTURE","SEO","PAGE_COVERAGE","AI_LAYER","CONVERSION","BRAND_PRESENCE","COMPETITION","CREATIVE_GAPS","SYNTHESIS"],"message":"Ghost audit started. Connect to stream_url with Accept: text/event-stream for live stage-by-stage output. Full markdown report ready at download_url in ~90 seconds.","next_steps":"1. Stream live: GET stream_url (SSE). 2. Download full report: GET download_url after ~90s. 3. Full audit UI: https://zambo.dev/ghost-audit"},"verify":{"status":"in_progress","message":"The audit started; use its audit_id to check status and retrieve findings."}}

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

Check this receipt

This record shows the result and timestamp stored for the call. Recompute the SHA-256 commitment from the saved bytes in your browser; signatures and chain proofs are not checked.

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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 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.

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.

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This receipt records a completed tool call. When the free allowance is not enough, choose the access path that fits the job.

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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: 2026-10-13T18:18:04.663Z; external immutability is not checked

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Committed provenance claim

EXECUTED BY ZAMBO

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

Receipt ID

5d86c382-5459-4a62-a7a2-c762ed61a87c

SHA-256 output hash

sha256:da357b3851ef0181e85dce399ad37f07503d53ce1f226028ada3d5796b650462

Canonical bytes

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

Timestamp

2026-10-13T18:18:04.663Z

Bound call context

Receipt schema

0.4

Tool name

zambo_universal

Tool version

4.0.0

Permission scope

public

Caller type

session

Caller ID

sha256:242a46b242050f3e8f9f52ba0a5813f78835e13549d94834925c7dedfecc5f1e

Declared side effects

state_write

Side-effects schema

zambo-side-effects/1

Declaration hash

sha256:dfb4412aa429d3ac637a05668c435bcc90a251363fcdd49f7b85ae4ab55b5bc9

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

captured

Evidence SHA-256

sha256:049d859d8a0ed2a1bd257e378d37ffd34146ea44baafc7505d58b1f5a2ae1084

Byte length

1027

Fetch exact evidence bytes

Neutral Nostr anchor

Event ID

ac74fa62db4f4cf78ee0bb7ad919b69f98e5da6715d5e3689829e4dc454dd55f

Anchor status

published

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":"2026-10-13T18:18:04.663Z","evidence_byte_length":1027,"evidence_sha256":"sha256:049d859d8a0ed2a1bd257e378d37ffd34146ea44baafc7505d58b1f5a2ae1084","evidence_url":"https://zambo.dev/api/evidence/049d859d8a0ed2a1bd257e378d37ffd34146ea44baafc7505d58b1f5a2ae1084","output_sha256":"sha256:da357b3851ef0181e85dce399ad37f07503d53ce1f226028ada3d5796b650462","receipt_uuid":"5d86c382-5459-4a62-a7a2-c762ed61a87c","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

Check this hash yourself

API v2 status: verified. This status summarizes the v2 commitment and provenance checks; it does not prove 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

<a href="https://zambo.dev/run/5d86c382-5459-4a62-a7a2-c762ed61a87c?ref=badge"><img src="https://zambo.dev/api/receipt/5d86c382-5459-4a62-a7a2-c762ed61a87c/badge.svg" alt="Verifiable Zambo receipt"></a>

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