OpenTechnical

OT-2026-000012129

Publication integrity record

Four cup vacuum gripper, four outlet manifold, three 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-2026-000012129) never changes.

Identity and time

Publication numberOT-2026-000012129 · never reused
Internal UUID01a0ae6d-39f4-7a76-ba89-e3ae63a7380e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012129
StatusPUBLIC

Content hashes

Canonical text37122e83b7b5a92aa0fe5e41b4262b8fc8dc63fe136c469336f7c7c15924789b
Markdown8d180e33d8d1e6179f3535b8a9052ed0af63d7a219ebd3d950c12e1d8d01237a
PDF
Publication pagec3d328b0ef6c1de3c5b0bed4222b531f8bd7d827aa25f2bb84890d869ac6a024
Manifest5f03d1c869409353b0d27e8c30446b579887e40d6d02f56606f74e71c987d5ec

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
SignatureGI61zPzqYoM+5epFeXVTKxmW03F3pEQiN2m/W5z83Rjs5MesdTMrLheV38zllU3dlKgmxf7czA0BRYdc5PgxDw==
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

2026-09-17T12:11:00.894415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012129
observed c3d328b0ef6c1de3c5b0bed4222b531f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:00.873106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012129/manifest.json
observed 5f03d1c869409353b0d27e8c30446b57...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:00.852048ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012129/publication.md
observed 8d180e33d8d1e6179f3535b8a9052ed0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:00.832503ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012129/publication.txt
observed 37122e83b7b5a92aa0fe5e41b4262b8f...
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.