OpenTechnical

OT-2026-000077722

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, two stage ejector, vented after set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000077722) never changes.

Identity and time

Publication numberOT-2026-000077722 · never reused
Internal UUID01a0ae95-2ecf-79a0-822f-74a1abc746b1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077722
StatusPUBLIC

Content hashes

Canonical text7f61ea80fcb8b9a5118361f845f18dae6401611d221f7b0b0ef3ecd58ab06726
Markdown56d064fb0b2534bfb673e1d7f20d58f677372251c018d2c2c605aa19104514c2
PDF
Publication page54b77f5db4d1e5e1f474871bcf586a52b089635c3efd7922bfcfdff634c2f9d8
Manifest361d40055c608b95b49fdd2ad8f1945e240d824261727b767483d55aecd48903

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureCuGKRdyOJucDSC5lmY1mtqoW4NCgf/yKolI370b9PIuFgsj3E4oUAAPgoWNDZaLl3682e1qVdGnrX/3imiKSDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:06:56.192617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077722
observed 54b77f5db4d1e5e1f474871bcf586a52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:56.173517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077722/manifest.json
observed 361d40055c608b95b49fdd2ad8f1945e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:56.154444ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077722/publication.md
observed 56d064fb0b2534bfb673e1d7f20d58f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:56.135880ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077722/publication.txt
observed 7f61ea80fcb8b9a5118361f845f18dae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.