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

Handed over with Zambo

OpenNov 2, 2026, 4:08 PM EST

Show one job's whole thread, started in one AI and finished in another, in a single record.

How this job moved

Started by uc-first-ai (reported by the AI, not verified) - Nov 2, 2026, 4:08 PM EST - 9 receipts - Open - View
Continued by uc-second-ai (reported by the AI, not verified) - Nov 2, 2026, 4:08 PM EST - 17 receipts - Open - View

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/e5228a67-b511-47d4-9f9d-cd794aec242e. Pick it up with handover_accept, then pass continue_from "e5228a67-b511-47d4-9f9d-cd794aec242e" when handing over the next part.

How this was made

plan the checks
Not checked
Receipt 7b280836-1d7d-4006-9813-3436e4acd27e
memory_remember
AI · uc-first-ai
Not checked
Receipt e6b3f363-1d73-4f29-abe3-081a3b62d023
live_price
AI · uc-first-ai
Not checked
Receipt 5aaf477e-d6dc-42b8-be36-59d966b7cedf
memory_remember
AI · uc-first-ai
Not checked
Receipt 19261b4f-1811-4701-9c19-65e5953ac168
handover_accept
AI · uc-second-ai
Not checked
Receipt 27ca62e6-45aa-4f81-854d-b362dcf2e473
memory_remember
AI · uc-second-ai
Not checked
Receipt 46b6327c-b71c-494d-b388-07c1820e98d0
live_price
AI · uc-second-ai
Not checked
Receipt 1169440c-09ea-47df-a469-a7b529914fb4
memory_remember
AI · uc-second-ai
Not checked
Receipt 596d821f-dab2-48e9-a27f-1d9821eb9dad
Additional review and retries skipped
Not checked
Retries and optional second-AI review
Receipt 2df04632-45ae-4043-9362-bae26e7ba50d

How this was made

plan the checks - Not checked - receipt 7b280836-1d7d-4006-9813-3436e4acd27e
memory_remember (AI: uc-first-ai) - Not checked - receipt e6b3f363-1d73-4f29-abe3-081a3b62d023
live_price (AI: uc-first-ai) - Not checked - receipt 5aaf477e-d6dc-42b8-be36-59d966b7cedf
memory_remember (AI: uc-first-ai) - Not checked - receipt 19261b4f-1811-4701-9c19-65e5953ac168
handover_accept (AI: uc-second-ai) - Not checked - receipt 27ca62e6-45aa-4f81-854d-b362dcf2e473
memory_remember (AI: uc-second-ai) - Not checked - receipt 46b6327c-b71c-494d-b388-07c1820e98d0
live_price (AI: uc-second-ai) - Not checked - receipt 1169440c-09ea-47df-a469-a7b529914fb4
memory_remember (AI: uc-second-ai) - Not checked - receipt 596d821f-dab2-48e9-a27f-1d9821eb9dad
Additional review and retries skipped - Not checked - receipt 2df04632-45ae-4043-9362-bae26e7ba50d

For the job owner

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

Job uc-switch-2026-11-02 completed across two AIs: the first AI saved the brief and figure 1, wrapped it; the second AI picked it up free, continued the same job, gathered figure 2, and drafted the summary. First handover https://zambo.dev/handover/4571d90d-869e-4852-8c9d-748abd564770.

0/ 17 steps checked in your browser

Also ask the server

Checking receipts…

Steps

01memory_rememberuc-first-ai^{producer-stated}Receipt bytes checked by server

Redacted publication copy of source receipt 845682e3. It does not re-authenticate the original run.

{"status":"saved","fact_id":"e09bcadc-b96e-4c59-b0d3-c88b0b965c47","fact_hash":"1c0702ee6ceb8d241a495e9126eb12e269b8bda9ca3c46538964873cdd751e48"}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENTa13cc94cba…9e634aOpen publication receipt
02live_priceuc-first-ai^{producer-stated}Receipt bytes checked by server

Redacted publication copy of source receipt e2783531. It does not re-authenticate the original run.

BTC · $76,743.00 USD ▼ 1.44% (24h) · Market cap: $1542.95B Live price via CoinGecko · Mon, 02 Nov 2026 21:08:23 GMT

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENT29b1aa7e50…ef1ea6Open publication receipt
03memory_rememberuc-first-ai^{producer-stated}Receipt bytes checked by server

Redacted publication copy of source receipt c93f4847. It does not re-authenticate the original run.

{"status":"saved","fact_id":"92ef9088-f8ff-40a6-a23f-60ee9cc00638","fact_hash":"a3564babe7e06767fea2b4574e8e9866e4346ececc569721a91646b9f690346e"}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENTe46e278a00…1c8aa4Open publication receipt
Continued in uc-second-ai (reported by the AI, not verified) from uc-first-ai (reported by the AI, not verified)
04handover_acceptuc-second-ai^{producer-stated}Receipt bytes checked by server

Redacted publication copy of source receipt cfaabc8f. 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."}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENTe034dac94d…30f45bOpen publication receipt
05memory_rememberuc-second-ai^{producer-stated}Receipt bytes checked by server

Redacted publication copy of source receipt a8af79c2. It does not re-authenticate the original run.

{"status":"saved","fact_id":"b2b6175d-5d73-48b9-8968-410a015336df","fact_hash":"cb2727fb01c687a92d83a39f85274c91b3f76da23a602d144e81e06e851988e3"}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENT53891e4d8a…671717Open publication receipt
06live_priceuc-second-ai^{producer-stated}Receipt bytes checked by server

Redacted publication copy of source receipt 84825139. It does not re-authenticate the original run.

ETH · $2,248.35 USD ▼ 0.64% (24h) · Market cap: $274.82B Live price via CoinGecko · Mon, 02 Nov 2026 21:08:44 GMT

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENT5ada1b2c0b…bac287Open publication receipt
07memory_rememberuc-second-ai^{producer-stated}Receipt bytes checked by server

Redacted publication copy of source receipt 79ce98f1. It does not re-authenticate the original run.

{"status":"saved","fact_id":"f4c7bf6a-7e2c-4b09-b8f0-2f44c7f8297d","fact_hash":"9e39bd267b8cd47c41f5ec4a5afce8e40e4fa316b0f3788eea513b49c306d5c3"}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENTc443722bec…a55c5cOpen publication receipt
08prompt_shielduc-second-ai^{producer-stated}Receipt 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

Nov 2, 2026, 4:08 PM ESTsuccessEXECUTED BY ZAMBOc644225f6b…44e0d6Open publication receipt
Continued in No AI used (reported by the AI, not verified) from uc-second-ai (reported by the AI, not verified)
09plan the checksNo AI used^{producer-stated}Receipt bytes checked by server

Receipt minted while publishing this handover.

{"ai":{"name":"Zambo rubric","used":false},"check":null,"label":"plan the checks","observation_commitment":"dd4c6de7f2e14d9df1913464e5356c22f75c30bb8fb92f41fd3b881e8dd70fca","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"}

Nov 2, 2026, 4:08 PM ESTsuccessEXECUTED BY ZAMBOc1f151419b…355849Open publication receipt
Continued in uc-first-ai (reported by the AI, not verified) from No AI used (reported by the AI, not verified)
10proof_loop_douc-first-ai^{producer-stated}Receipt bytes checked by server

Receipt minted while publishing this handover.

{"ai":{"name":"uc-first-ai","used":true},"check":null,"label":"memory_remember","observation_commitment":"be50f93fdbe8520398d4f347f224da6b4bd98d746367f2fd09f8d55570c971c4","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"}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENT5fcc55600d…7aa942Open publication receipt
11proof_loop_douc-first-ai^{producer-stated}Receipt bytes checked by server

Receipt minted while publishing this handover.

{"ai":{"name":"uc-first-ai","used":true},"check":null,"label":"live_price","observation_commitment":"361d65c3f3727017b8a95e713accd906e1b8836533b2500c31cb60bc5e54cb42","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"}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENT42e6fa9089…d26e3bOpen publication receipt
12proof_loop_douc-first-ai^{producer-stated}Receipt bytes checked by server

Receipt minted while publishing this handover.

{"ai":{"name":"uc-first-ai","used":true},"check":null,"label":"memory_remember","observation_commitment":"38d008c4b6f918de254938a114a54e8078c26d4838aebbf115f6532b08028ea9","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"}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENT9c7ba02455…91791aOpen publication receipt
Continued in uc-second-ai (reported by the AI, not verified) from uc-first-ai (reported by the AI, not verified)
13proof_loop_douc-second-ai^{producer-stated}Receipt bytes checked by server

Receipt minted while publishing this handover.

{"ai":{"name":"uc-second-ai","used":true},"check":null,"label":"handover_accept","observation_commitment":"03107b4309e99bd05468db6ead4832856192c007974ec26ad52a7a2fc47046e8","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"}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENTbc2270add6…5fe721Open publication receipt
14proof_loop_douc-second-ai^{producer-stated}Receipt bytes checked by server

Receipt minted while publishing this handover.

{"ai":{"name":"uc-second-ai","used":true},"check":null,"label":"memory_remember","observation_commitment":"cfa79422c7d0c2460181105a984ffe85aafe209ad73922f3e683a3e89b1365fe","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"}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENTea90c209e8…f10d94Open publication receipt
15proof_loop_douc-second-ai^{producer-stated}Receipt bytes checked by server

Receipt minted while publishing this handover.

{"ai":{"name":"uc-second-ai","used":true},"check":null,"label":"live_price","observation_commitment":"233b021d2290ce8246039270f813ef240e5bb208c784dda5fe73f02959bc192a","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"}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENT65387b0e1e…49ac93Open publication receipt
16proof_loop_douc-second-ai^{producer-stated}Receipt bytes checked by server

Receipt minted while publishing this handover.

{"ai":{"name":"uc-second-ai","used":true},"check":null,"label":"memory_remember","observation_commitment":"54e9e0b9b3581eacd9a94fb8d7d3f389666a58ab573798998fbd3971a1350ff6","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"}

Nov 2, 2026, 4:08 PM ESTsuccessLOGGED BY AGENT630e56810a…4cb7f5Open publication receipt
Continued in No AI used (reported by the AI, not verified) from uc-second-ai (reported by the AI, not verified)
17proof_loop_checkNo AI used^{producer-stated}Receipt 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

Nov 2, 2026, 4:08 PM ESTsuccessEXECUTED BY ZAMBO04ea4407d1…3048faOpen 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.

Start your own handover

Heavy day? A Day Pass ($0.99, one time) covers 24 hours.

Share this check

I checked this delivery receipt by receipt: https://zambo.dev/handover/e5228a67-b511-47d4-9f9d-cd794aec242e (status: pending). Every step is public and re-checkable.

Saved notes for pickup

No saved notes were found for this continuation.

Technical details

Summary receipt and roota9bd2bf58b…235a35Not checked yet

step list digest

9c10c8715fc6d93c81f9eb9811b2117afc735be5df84841e9e037be4ddb3f4d4

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

Decisions

No client decision has been recorded.

Open items

Read both handovers: the pause and the completion.
Check any step receipt at https://zambo.dev/verify/.

Pick up at Read both handovers: the pause and the completion.?

Try to break it

Change one character. Watch it fail.

Payload

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

Copy this handover, then paste it into the AI you want to pick up the work.

To Accept or Flag, ask the sender for your client link. This public page is read-only.

Keep going in any AI: $0.99 for 24 hours, one payment · Add Zambo free

AI-use statement

AI use: uc-first-ai helped with 6 of 17 steps. uc-second-ai helped with 9 of 17 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/e5228a67-b511-47d4-9f9d-cd794aec242e.json · use zambo: https://zambo.dev/mcp