OpenTechnical

OT-2026-000029721

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000029721) never changes.

Identity and time

Publication numberOT-2026-000029721 · never reused
Internal UUID01a0ae73-5e23-73c1-90a8-7deaf3821c6f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029721
StatusPUBLIC

Content hashes

Canonical text5e3fb9a27a7faef36555c0b8cdbe0213ca70f08f1db59c0a2a41ee2dfbaf0f3d
Markdowndc0e8a0a4413c188114dc62917eab02e5202f69166330e6f6c8d264eee5bbdd8
PDF
Publication pagef3ec867482f18122ccae0d467dd59da0a8cbb23cd87adb3561b28bdb614956c7
Manifest81ff8cf9f2cf1f4ab6bd987e21451aeda96cb5242d5bebbc37da6c4d4c6c2aa9

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
SignatureGG5wPdlBAM0RSvVKuQ+ILEK8dZeK5it0y9n5Xg4jQQtUMWVnfey328lgP2G2DWidmyitKG2I8Wgx99HmRGC0Aw==
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

2026-09-17T11:39:27.165595ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029721
observed f3ec867482f18122ccae0d467dd59da0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:27.146702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029721/manifest.json
observed 81ff8cf9f2cf1f4ab6bd987e21451aed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:27.128133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029721/publication.md
observed dc0e8a0a4413c188114dc62917eab02e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:27.105425ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029721/publication.txt
observed 5e3fb9a27a7faef36555c0b8cdbe0213...
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.