OpenTechnical

OT-2026-000029183

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, two stage ejector, 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-2026-000029183) never changes.

Identity and time

Publication numberOT-2026-000029183 · never reused
Internal UUID01a0ae73-2aa0-7963-8baa-f32f426f367e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029183
StatusPUBLIC

Content hashes

Canonical text11d52544a20b64959828f340c5d1a83544e254c22f64b0c1f8ff9fc2d911f2c9
Markdown5786dadd078e0dc184e1e48c2a55cc2b3e58e83aa1c1163638841f3e0975d044
PDF
Publication pagee8c0a03cd0006d787fbe6c2cfd58b77bc3b092184f2ac2c163289754c1aa2ab0
Manifest2620912b0870ce08aa3529efcc5ebda1d63aaec193e7a0b68134a626c24ecf63

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
SignatureXXrNCB5I5gEIBB7rcHzei0pINFOaf+EjyqRVRv+qDHEeOmp47+65lnmncgQFAl/ou9HxcUxHQxG2j3EdxdriDA==
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

2026-09-17T11:39:41.050202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029183
observed e8c0a03cd0006d787fbe6c2cfd58b77b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:41.026493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029183/manifest.json
observed 2620912b0870ce08aa3529efcc5ebda1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:41.008569ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029183/publication.md
observed 5786dadd078e0dc184e1e48c2a55cc2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:40.986903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029183/publication.txt
observed 11d52544a20b64959828f340c5d1a835...
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.