OpenTechnical

OT-2026-000042498

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, three stage ejector, sustained blow-off 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-2026-000042498) never changes.

Identity and time

Publication numberOT-2026-000042498 · never reused
Internal UUID01a0ae7a-c0cd-7903-96f4-5071e145adc3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042498
StatusPUBLIC

Content hashes

Canonical text35dbf6965f24e0e9457095cbd963b03912b7e327a5e3d7fcbe8753375db3bcc7
Markdownd289f4927f62f4426a660c48e8fb64ddef3b3edb21be611ddd143e6c1eb68d68
PDF
Publication page6f764cee44b0905962ba3b50e1d31371b6ce0d2cffbfc3f89332a8a33c728d9a
Manifestdb0ef8dd28a8c0cdeffc1c9cb23a25378a23b0b965b3d9da6821262acbd7e003

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
SignaturejUTYR8rk6N4jR9j62lx+LWhdp/PgP5KJnHCXezMrTg6EYHKoWEQWnstGxGBvf5PaGwoyUe6dDlholKzcQahGAw==
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

2026-09-17T11:14:04.367797ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042498
observed 6f764cee44b0905962ba3b50e1d31371...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:04.348459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042498/manifest.json
observed db0ef8dd28a8c0cdeffc1c9cb23a2537...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:04.329253ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042498/publication.md
observed d289f4927f62f4426a660c48e8fb64dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:04.310122ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042498/publication.txt
observed 35dbf6965f24e0e9457095cbd963b039...
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.