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

Handed over with Zambo

Picked upNov 2, 2026, 4:05 PM EST

Deliver UC-1043 as one checkable record the client can open and verify step by step.

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/36b6651f-672e-4b33-8934-139876a02300. Pick it up with handover_accept, then pass continue_from "36b6651f-672e-4b33-8934-139876a02300" when handing over the next part.

For Marina Cole Studio (sample client)

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

SAMPLE delivery for job UC-1043 (fictional sample client Marina Cole Studio): homepage copy, draft v1 and revision v2, worked inside one job on Zambo. Brief receipt https://zambo.dev/run/084b67dd-72ee-4bce-8aac-04cd2ad2cdb5. Draft receipt https://zambo.dev/run/74bb7b07-a008-42e9-b1ac-cd22fc419b00. Revision (delivered version) receipt https://zambo.dev/run/23c0730f-871a-40de-bff7-9774dfc9c788.

0/ 4 steps checked in your browser

Also ask the server

Checking receipts…

Steps

01memory_rememberuc-delivery-worker^{producer-stated}Receipt bytes checked by server

Redacted publication copy of source receipt 084b67dd. It does not re-authenticate the original run.

{"status":"saved","fact_id":"b8d0bd81-c93a-439d-b0bb-7da7c553f769","fact_hash":"a15d6a50acc9a3645de340c315f272fe5a51ee595c6e5319d91ff31845ad1c38"}

Nov 2, 2026, 4:05 PM ESTsuccessLOGGED BY AGENT3a1a3dca9e…7526c7Open publication receipt
02memory_rememberuc-delivery-worker^{producer-stated}Receipt bytes checked by server

Redacted publication copy of source receipt 74bb7b07. It does not re-authenticate the original run.

{"status":"saved","fact_id":"60956605-0f43-4a2c-9efd-4d4f78ccdd3c","fact_hash":"ead0514e6eff9e04040efc0f62a5ee40ba08e68d84c8bffeac8863f51f8e2376"}

Nov 2, 2026, 4:05 PM ESTsuccessLOGGED BY AGENT63523eeb79…cc41b5Open publication receipt
03memory_rememberuc-delivery-worker^{producer-stated}Receipt bytes checked by server

Redacted publication copy of source receipt 23c0730f. It does not re-authenticate the original run.

{"status":"saved","fact_id":"dc0d756e-3a0f-4a92-8562-08a3fbc1d7e0","fact_hash":"d57a2ccce7f5614688a2f4a64e86e5ecc86e891ad7c2edc0d406f10733254768"}

Nov 2, 2026, 4:05 PM ESTsuccessLOGGED BY AGENT6de4f15083…4d3676Open publication receipt
04prompt_shielduc-delivery-worker^{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, 4:05 PM ESTsuccessEXECUTED BY ZAMBOd83a84819d…66f57aOpen 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/36b6651f-672e-4b33-8934-139876a02300 (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 rooteb5aec3c6e…9afe40Not checked yet

step list digest

af8f8f2e1e62fa9eba01dbfaf49c7c5bf3d3eccd8a7d7f821c29ce5d419a5d54

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

Decisions

No client decision has been recorded.

Open items

Open the handover and read the steps in order: brief, draft, revision.
Check the revision receipt at https://zambo.dev/verify/ before relying on it.
Pick the handover up to sign off; the pickup is the acceptance record.

Pick up at Open the handover and read the steps in order: brief, draft, revision.?

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.

Responses

continuation by uc-delivery-clientNov 2, 2026, 4:05 PM EST · receipt

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-delivery-worker helped with 4 of 4 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/36b6651f-672e-4b33-8934-139876a02300.json · use zambo: https://zambo.dev/mcp