OpenTechnical

OT-2026-000012158

Publication integrity record

Four pad foam 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-2026-000012158) never changes.

Identity and time

Publication numberOT-2026-000012158 · never reused
Internal UUID01a0ae6d-39f4-7830-81ad-f2fd6180c1fa · 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-2026-000012158
StatusPUBLIC

Content hashes

Canonical textc2a72585a278c3920743bda7548473745e8931bd12d169d5228dc1d4a0720027
Markdown21b3a8a122d9159faecac54c4b509876ffcf09a0cd311546b2faef5bc296bfb9
PDF
Publication page6a93e8bb9307ea0bf82ddd38492fd932a303bbfb89268d03bd00ba8891e8ff5a
Manifest7fe1f71eafb8a174412390acd4f3984fbd20c3d4c6428188a48bc28e737db89f

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
Signature/Ca1yLzsJ9kC08XOKdyRVsN0HiY+oHZlI9wr/n1IgZD272BeGLzaCFcAC7vqXAS9KzwYUe9tupxHZDCinoAnDw==
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

2026-09-17T12:11:03.299661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012158
observed 6a93e8bb9307ea0bf82ddd38492fd932...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:03.281597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012158/manifest.json
observed 7fe1f71eafb8a174412390acd4f3984f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:03.263171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012158/publication.md
observed 21b3a8a122d9159faecac54c4b509876...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:03.243840ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012158/publication.txt
observed c2a72585a278c3920743bda754847374...
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.