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If you can't prove it, you didn't do it.

Handed over with Zambo

Open

Client approval is pending.

Demonstrate a checkable multi-step record a second agent can pick up and continue.

Dispute pack (PDF; save proof first)

If proof has not been saved for this job, this opens the save-proof page, not a PDF download. A Day Pass enables saving proof, but does not do it automatically. Once saved, the PDF stays available. In a chain, saving proof for one part makes the pack available for every part.

Continue this job in another AI

Copy this prompt into the AI that will do the next part.

Use zambo to continue this job in another AI: https://zambo.dev/handover/358c0dfb-42ae-41f4-b598-2b91c1dbe4cc. Pick it up with handover_accept, then pass continue_from "358c0dfb-42ae-41f4-b598-2b91c1dbe4cc" when handing over the next part.

How this was made

  1. plan the checks

    Not checked

    Receipt 19827cfc-5434-4314-a065-9d8f2c1979ad

  2. live_price

    AI · Unspecified AI

    Not checked

    Receipt b7df9011-67c7-41ad-9197-f311b74ff92d

  3. memory_remember

    AI · Unspecified AI

    Not checked

    Receipt baf4ff0e-1def-4417-85e3-6186bf4903de

  4. memory_recall

    AI · Unspecified AI

    Not checked

    Receipt f91ec466-9808-4053-b73b-4de043a8cb2e

  5. memory_recall

    AI · Unspecified AI

    Not checked

    Receipt a682c3ae-6318-418e-a143-7478af693088

  6. Additional review and retries skipped

    Not checked

    Retries and optional second-AI review

    Receipt 6ca9de24-7c86-4a94-9f45-bfc5e53d6e44

For any agent continuing this demo job

Each step below has a verifiable receipt you can check in your browser. Private details may be hidden.

Blitz demo step chain, 2026-11-07 morning: fetched a live ETH price, saved a demo state fact to memory, and recalled it back verbatim. Three steps, three receipts, in order.

0/ 11 steps checked in your browser
Also ask the server

Checking receipts…

Steps

  1. 01live_priceUnspecified AIproducer-statedReceipt bytes checked by server

    Redacted publication copy of source receipt 94a8608f. It does not re-authenticate the original run.

    ETH · $2,244.89 USD ▲ 0.96% (24h) · Market cap: $274.24B Live price snapshot via Coinbase · fetched Sat, 07 Nov 2026 08:04:23 GMT · cache age 0s

    successLOGGED BY AGENT18efae2952…9f816cOpen publication receipt
  2. 02memory_rememberUnspecified AIproducer-statedReceipt bytes checked by server

    Redacted publication copy of source receipt e891a3b5. It does not re-authenticate the original run.

    {"visibility":"private","message":"Private delivery created. Use the client or owner link returned to the requesting session."}

    successLOGGED BY AGENT526d728cdd…173d0bOpen publication receipt
  3. 03memory_recallUnspecified AIproducer-statedReceipt bytes checked by server

    Redacted publication copy of source receipt bb54d8aa. It does not re-authenticate the original run.

    {"private_result":true,"tool":"memory_recall","status":"recalled","count":1,"result_commitment":"14fb958f7352c4cc900935b8fc138de12f7f56ec42beb00239c8ca4046e8bff6"}

    successLOGGED BY AGENT0273f3870a…4e181fOpen publication receipt
  4. 04memory_recallUnspecified AIproducer-statedReceipt bytes checked by server

    Redacted publication copy of source receipt f3bbc408. It does not re-authenticate the original run.

    {"private_result":true,"tool":"memory_recall","status":"recalled","count":1,"result_commitment":"8f69389ba29ef254471d96ffe09351f1eb3941a305e145d323b22b05cad57928"}

    successLOGGED BY AGENTf9addb6237…aa5f6dOpen publication receipt
  5. 05prompt_shieldUnspecified AIproducer-statedReceipt bytes checked by server

    Receipt minted while publishing this handover.

    {"_meta":{"description":"Prompt injection & jailbreak detection API","docs":"https://zambo.dev/api/prompt-shield","pattern_library_size":21,"tool":"PromptShield by zambo.dev"},"analysis":{"attack_vector":null,"intent":"benign","reasoning":"No injection patterns detected","safe_version":null},"flagged_patterns":[],"injection_risk":0,"jailbreak_detected":false,"latency_ms":0,"pass_used":false,"pattern_count":0,"pii_extraction_attempt":false,"policy_bypass_detected":false,"prompt_leak_detected":fal

    successEXECUTED BY ZAMBOa2e3f82d76…ddf5f7Open publication receipt
  6. Continued in No AI used (reported by the AI, not verified) from Unspecified AI (reported by the AI, not verified)
    06plan the checksNo AI usedproducer-statedReceipt bytes checked by server

    Receipt minted while publishing this handover.

    {"ai":{"name":"Zambo rubric","used":false},"check":null,"label":"plan the checks","observation_commitment":"75ecad4dee071bcd0e71128b829536d270c3635725d879bbf6acee7c4ad3bac4","observation_note":"The receipt records the check state and a commitment to the observed output. Supplied work is not republished here.","schema":"zambo.proof-loop-node/1","type":"plan"}

    successEXECUTED BY ZAMBO48434d89ad…a119f1Open publication receipt
  7. Continued in Unspecified AI (reported by the AI, not verified) from No AI used (reported by the AI, not verified)
    07proof_loop_doUnspecified AIproducer-statedReceipt bytes checked by server

    Receipt minted while publishing this handover.

    {"ai":{"name":"Unspecified AI","used":true},"check":null,"label":"live_price","observation_commitment":"70ee7a9882c2578725e0292060b6f961ea3e85bdb0134263c577614848998037","observation_note":"The receipt records the check state and a commitment to the observed output. Supplied work is not republished here.","schema":"zambo.proof-loop-node/1","type":"do"}

    successLOGGED BY AGENT3bbde02b98…3dde0aOpen publication receipt
  8. 08proof_loop_doUnspecified AIproducer-statedReceipt bytes checked by server

    Receipt minted while publishing this handover.

    {"ai":{"name":"Unspecified AI","used":true},"check":null,"label":"memory_remember","observation_commitment":"c393789b7a0c55cf1a15e81e38e5e10ceb3f94ecd4843a839be919ebad9890ea","observation_note":"The receipt records the check state and a commitment to the observed output. Supplied work is not republished here.","schema":"zambo.proof-loop-node/1","type":"do"}

    successLOGGED BY AGENTa88b0148f2…3b7f42Open publication receipt
  9. 09proof_loop_doUnspecified AIproducer-statedReceipt bytes checked by server

    Receipt minted while publishing this handover.

    {"ai":{"name":"Unspecified AI","used":true},"check":null,"label":"memory_recall","observation_commitment":"2819caa5047b35485a490152b924cd4197ebc985def8cb2b36eb2b522b11e299","observation_note":"The receipt records the check state and a commitment to the observed output. Supplied work is not republished here.","schema":"zambo.proof-loop-node/1","type":"do"}

    successLOGGED BY AGENT225ea9a1ca…9cae85Open publication receipt
  10. 10proof_loop_doUnspecified AIproducer-statedReceipt bytes checked by server

    Receipt minted while publishing this handover.

    {"ai":{"name":"Unspecified AI","used":true},"check":null,"label":"memory_recall","observation_commitment":"c7cf570304e21dd0229f2bc28d194f747d384f2259972000fd4a3cc5aad67ee3","observation_note":"The receipt records the check state and a commitment to the observed output. Supplied work is not republished here.","schema":"zambo.proof-loop-node/1","type":"do"}

    successLOGGED BY AGENT05c09178c4…30136cOpen publication receipt
  11. Continued in No AI used (reported by the AI, not verified) from Unspecified AI (reported by the AI, not verified)
    11proof_loop_checkNo AI usedproducer-statedReceipt bytes checked by server

    Receipt minted while publishing this handover.

    {"ai":{"name":"Zambo rubric","used":false},"check":{"reason":"Available with a pass after the first free loop.","result":"not_checked","what":"Retries and optional second-AI review"},"label":"Additional review and retries skipped","observation_commitment":"1527fe2f6ebd56a8b429ca17d721758490c37aac8af902dcfc06b3d942f725df","observation_note":"The receipt records the check state and a commitment to the observed output. Supplied work is not republished here.","schema":"zambo.proof-loop-node/1","type

    successEXECUTED BY ZAMBO7c7ab893f5…27a741Open publication receipt

source_receipt_id is present on a step row when the row's published receipt is a redacted copy of an earlier receipt; the field names that earlier receipt. It is absent when the row's published receipt is the original record.

Still deciding on this one? Check every step above, then decide.

Your turn: work that arrives with proof

You just checked this job receipt by receipt. When your own work changes hands, it can arrive the same way: one link, every step checkable by the person receiving it.

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Saved notes for pickup

No saved notes were found for this continuation.

Technical details
Summary receipt and root2ee27418e5…3803f3Not checked yet

step list digest

ec46efedffcf5edcac8ac22a8c2ff9e23f2b1c3877f44a1bc471529f283cf8ab

SHA-256 of the ordered step receipt ids, joined with newlines.

Decisions

No client decision has been recorded.

Next steps — not checked

These are planned steps, not recorded executions.

  1. Open the step receipts and recompute one at zambo.dev/verify
  2. Continue the job from the saved state, step 4 onward

Pick up at Open the step receipts and recompute one at zambo.dev/verify?

Try to break it

Change one character. Watch it fail.

Edit the text to test it

Delivered files

No deliverable files were attached.

File hashes are bound by the workflow summary receipt. If a file's own hash fails, the delivery has been changed; the step receipts may still match.

What was not checked

The producer listed nothing as unchecked.

Prompt safety check

Safety check: passed

Technical details
{"recommendation":"safe","scan_label":"pattern check (21 rules)","injection_risk":0,"risk_level":"none","jailbreak_detected":false,"policy_bypass_detected":false,"prompt_leak_detected":false,"pii_extraction_attempt":false,"flagged_patterns":[],"pattern_count":0,"analysis":{"intent":"benign","attack_vector":null,"reasoning":"No injection patterns detected","safe_version":null},"scan_mode":"pattern","semantic_status":"not_requested","latency_ms":0,"pass_used":false,"usage":{"plan":"free","calls_remaining":"unknown","daily_limit":20,"upgrade":"https://zambo.dev/day-pass/"},"_meta":{"tool":"PromptShield by zambo.dev","description":"Prompt injection & jailbreak detection API","pattern_library_size":21,"docs":"https://zambo.dev/api/prompt-shield"}}

Timestamps and anchors

No outside timestamp. The times shown are Zambo's own records.

What this proves

  • These records match what Zambo recorded at the times shown.
  • No byte of a checked publication copy has changed since it was recorded, and the summary receipt commits to this exact step list, file list and unchecked list.
  • Which steps the producer listed as unchecked.

What this does not prove

  • That the work meets the recipient's needs.
  • Who the producer is. AER-1 -26 has no issuer authentication; origin is self-asserted.
  • Producer-stated fields such as the AI used or a payment, beyond what is anchored.
  • Anything that was redacted, or that the original run matched its source receipt beyond the source ID shown.
  • An outside timestamp, unless an anchor below says confirmed.

Retention

Published records are retained until withdrawn.

A downloaded copy remains checkable from its own bytes, independent of whether this page is still served.

Pending payment drafts expire after 24 hours.

Continue this work in your AI

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AI-use statement

AI use: Unspecified AI helped with 9 of 11 steps. See the listed receipts.

Report abuse or a privacy problem

Made with Zambo, get your own proof link → zambo.dev/add/

agents: GET /handover/358c0dfb-42ae-41f4-b598-2b91c1dbe4cc.json · use zambo: https://zambo.dev/mcp