OpenTechnical

OT-2026-000020637

Publication integrity record

Three cup vacuum gripper, three outlet manifold, two stage ejector, manifold pressure sensor, pulsed blow-off before 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-2026-000020637) never changes.

Identity and time

Publication numberOT-2026-000020637 · never reused
Internal UUID01a0ae6f-65e1-7989-be9c-e43b325b4f67 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020637
StatusPUBLIC

Content hashes

Canonical text070a5922fceab1fd0ff880a49ce349b371cf995f38e90611ce4bc41f3703bf5e
Markdown8cc44996ddddb9f65933f4fa3f1c45844d98456fb0b93b3229fd0062b9923e6e
PDF
Publication page3fb6be6a092ede407773966d9bfdfcbd114ba1580f77a5e737e8e9c9ea9cfe4a
Manifest05791175c8b65a6a2b71f8acb8b4df08899cf901e5a275bd54fb53187fc06bb0

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
SignatureXLvQtwLlNvjrqb6g8aAhOJFpncKOHwbWwIukcynfNPxvDebzjeItwZ1TRVf/szOTE+XfrE2ft7sYsAlytbFHAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:55:35.242811ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020637
observed 3fb6be6a092ede407773966d9bfdfcbd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:35.224919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020637/manifest.json
observed 05791175c8b65a6a2b71f8acb8b4df08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:35.207791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020637/publication.md
observed 8cc44996ddddb9f65933f4fa3f1c4584...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:35.189161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020637/publication.txt
observed 070a5922fceab1fd0ff880a49ce349b3...
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.