OpenTechnical

OT-2026-000103957

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, pulsed 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-2026-000103957) never changes.

Identity and time

Publication numberOT-2026-000103957 · never reused
Internal UUID01a0aea5-15e8-74ce-b1b7-78b460d14612 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:09.781581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103957
StatusPUBLIC

Content hashes

Canonical text918aa070797b634f0f34ee91daea06d80ca1262915f2d31b3e10a2cb3a542a41
Markdown2583a1aa692bf030d7ff0ac29a713792eae4351eb82d7fe895c0b0f7fd8dc85f
PDF
Publication page3485fc64bd2be15c95533985e82c0828336069ed10b4001fa0a0aa34c8ad8e91
Manifestc91438c9b2bc77eaf3c26e3166e4e1ce6bb142a8f7dcecc061b7132a7319b0e5

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
SignaturejcAUftIGw6Ouc666ddyGnHL+GMuzp24aOLRCHHyY8ttP7ElfFBH9kCb7/qT2A7994hhCOcQQ7aXXxfDEvjGmCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:57.606170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103957
observed 3485fc64bd2be15c95533985e82c0828...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:57.589797ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103957/manifest.json
observed c91438c9b2bc77eaf3c26e3166e4e1ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:57.571978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103957/publication.md
observed 2583a1aa692bf030d7ff0ac29a713792...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:57.554993ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103957/publication.txt
observed 918aa070797b634f0f34ee91daea06d8...
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.