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Observed result

{"leads":[{"id":"reddit-214651776","title":"Detail Oriented Master Plumber Recommendation","summary":"I am looking for a master plumber in the Pittsburgh area for some detailed cleanup work in our 1888 home basement. No VC backed outfits. Prefer union labor. Scope includes: - hot/cold water supply line re-routing - new tankless water heater to service kitchen - split current single zone hydronic heat into two zones, new zone to service two-three rooms with 3-4 radiators - install mixing valve and temperature regulator for in floor heat (connected to hydronic boiler - cleanup / replace as needed","platform":"Reddit","location":"Austin, TX","actual_city":"Austin, TX","requested_city":"Austin, TX","location_match":true,"postedAt":"2d ago","minutesAgo":3415,"score":74,"urgency":"high","contactInfo":"Reply via the linked Reddit post | 💡 DM with your local rate and availability — first to respond wins","sourceUrl":"https://www.reddit.com/r/Plumbing/comments/1wwttbp/detail_oriented_master_plumber_recommendation/","jobDetails":null,"outreachMessage":"Hi — I saw your post, “Detail Oriented Master Plumber Recommendation”. If this is still active, please share the best way to discuss the project and any timing or scope details."},{"id":"reddit-814229912","title":"How to snake a shower drain? Help!","summary":"I am a single mom and, while clumps of hair make me gag, I refuse to continue to pay someone to snake my shower. I do normally use a hair catcher in the drain, but I'd gotten out of the habit (bad, I know) and now I have a big clog. Can anyone point me to a video tutorial that's easy for laymen to understand on how to snake my shower drain? And recommendations on what type of snake to use? I'd bought some flimsy plastic ones and they didn't work at all. I have no idea what I'm doing and would be","platform":"Reddit","location":"Austin, TX","actual_city":"Austin, TX","requested_city":"Austin, TX","location_match":true,"postedAt":"5d ago","minutesAgo":7811,"score":74,"urgency":"high","contactInfo":"Reply via the linked Reddit post | 💡 DM with your local rate and availability — first to respond wins","sourceUrl":"https://www.reddit.com/r/Plumbing/comments/1wua5fx/how_to_snake_a_shower_drain_help/","jobDetails":null,"outreachMessage":"Hi — I saw your post, “How to snake a shower drain? Help!”. If this is still active, please share the best way to discuss the project and any timing or scope details."}],"count":2,"trade":"Plumbing","city":"Austin, TX","requested_city":"Austin, TX","quota_tier":"free_3","free_limit":3,"leadsignal_quota":{"tier":"free","limit":3,"remaining":1,"resets_at":"2026-10-07T00:00:00.000Z"},"dashboard":"https://zambo.dev/leads/","_powered_by":"zambo.dev/leads"} $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.

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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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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: 2026-10-06T03:04:09.274Z; 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
39dba398-87d6-47ac-a65e-6817b1cb5db4
SHA-256 output hash
sha256:d51e6283497fe23fd070cdb2c2838a8e0f13fd66f4ff16be67a366e1fc20cf6c
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.3
Tool name
leadsignal_generate
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
captured
Evidence SHA-256
sha256:f29a146049b5e52ed4d8d64a9a687891979ec1e48d6cd14362cb510cc4ef203b
Byte length
2653

Fetch exact evidence bytes

Neutral Nostr anchor

Event ID
2ba95f189944c17ae54a333b2cf012a7e3b831bc6b1864adcbcc86cf1861fa26
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":"2026-10-06T03:04:08.466Z","evidence_byte_length":2653,"evidence_sha256":"sha256:f29a146049b5e52ed4d8d64a9a687891979ec1e48d6cd14362cb510cc4ef203b","evidence_url":"https://zambo.dev/api/evidence/f29a146049b5e52ed4d8d64a9a687891979ec1e48d6cd14362cb510cc4ef203b","output_sha256":"sha256:d51e6283497fe23fd070cdb2c2838a8e0f13fd66f4ff16be67a366e1fc20cf6c","receipt_uuid":"39dba398-87d6-47ac-a65e-6817b1cb5db4","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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HTML

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