Verifiable receipt 966bef23 - write result | Zambo

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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 write call on Zambo: Subject: Zambo is live: Substrate & VeriAI integration Hi [Name], Zambo is officially live. We skipped the soft la

Observed result

Subject: Zambo is live: Substrate & VeriAI integration Hi [Name], Zambo is officially live. We skipped the soft launch. The platform is now fully executable, with two core tools ready for immediate deployment. First, **Substrate Layer**. This is a living AI research machine featuring 51 distinct lifeforms designed for adversarial research. It is fully executable in-chat, requires no approval, and is retry-safe. You get unlimited calls on the free tier, or it’s included in the Zambo Pass. It returns structured breakthroughs and counts, giving you a read-only research feed you can trust. Second, **VeriAI**. This tool provides a cryptographic trust score for any AI-generated output. Note: VeriAI operates via web flow, not a direct MCP route. If you need verified trust scores for your outputs, you’ll use the public site at veriai.site. We didn’t invent features. We built what works. The Substrate tool is a direct, callable endpoint. The VeriAI link is the only verified path for trust scoring. No placeholders. No "coming soon." **Your Next Step:** Run a single test on Substrate. Call `substrate_breakthroughs({})` to pull the current research feed. Verify the output structure. If it meets your research standards, you’re ready to integrate. Everything is transparent. The receipt for this launch run is available here if you need to audit the exact bytes saved: [Link](https://zambo.dev/run/72483032-109c-4884-9127-0f222d20033c). Let’s see what your data can do. Best, [Your Name] [Your Title] Zambo

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 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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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: 2026-10-18T21:46:09.099Z; external immutability is not checked

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Get receipts for your own AI work: add zambo.dev/mcp

One URL, no key. Copy the line for your AI and add it yourself in its settings.

  • ClaudeSettings, Connectors, Add custom connector, paste the URL.
    https://zambo.dev/mcp
  • ChatGPTSettings, Apps and Connectors, developer mode, create a connector with this URL.
    https://zambo.dev/mcp
  • GrokAdd a remote MCP server in your Grok client and paste the URL.
    https://zambo.dev/mcp
  • CursorPaste into ~/.cursor/mcp.json.
    {"mcpServers":{"zambo":{"url":"https://zambo.dev/mcp"}}}

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Show receipt data and verification evidence

Committed provenance claim

EXECUTED BY ZAMBO

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

Receipt ID
966bef23-41c4-4028-a381-c33c8e0cd479
SHA-256 output hash
sha256:f66911f192597fe89b672fd830c566aede35f1eb3181806f7c07df34fc6ca04b
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
write
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:3e6c1db28ac3bf863a946101ef060597bdb7c5a6e31cd8f6dca537785813ea2d
Caller-reported label
zambo-home-demo (caller_reported, not authenticated team ownership)
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
3dcf13daa05135e958e4a5867c10f308e2f77452718edfcd2abde7f06b9b6152
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":"2026-10-18T21:46:09.099Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:f66911f192597fe89b672fd830c566aede35f1eb3181806f7c07df34fc6ca04b","receipt_uuid":"966bef23-41c4-4028-a381-c33c8e0cd479","schema_version":"zambo-receipt-anchor/1"}

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

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.

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HTML

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