OpenTechnical

OT-2026-000072221

Publication integrity record

Foam pad vacuum gripper, two zone face, three outlet manifold, three stage ejector, supply line pressure sensor, 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-2026-000072221) never changes.

Identity and time

Publication numberOT-2026-000072221 · never reused
Internal UUID01a0ae92-47c2-7d26-8393-3a84a38a219d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072221
StatusPUBLIC

Content hashes

Canonical text781555bd38a7a41f101bcc2e3a0eb079595e01842246da2ec632ba5bd8707d4a
Markdown38a5e388fe4e99bf74e0c44e3b4ddbc1a973cb0716fbd3fbd285729eb73ea355
PDF
Publication paged76fd22266c37d0c640efd66a968a859e04dc139a57281742d29a1e03cc968b6
Manifest9afd4149e1e43e4f3296b14241b64334bdc6292d80b6445d7061103860326f17

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
SignaturegLi2kYXRXYZHH/YPJhZh0JDirxvnLh1OIYGiiTad/yLRO4d37rbpxXf534AsQWFfqP+UpLKgTaGguPPkyXKKAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:23:19.465789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072221
observed d76fd22266c37d0c640efd66a968a859...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:19.449468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072221/manifest.json
observed 9afd4149e1e43e4f3296b14241b64334...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:19.431846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072221/publication.md
observed 38a5e388fe4e99bf74e0c44e3b4ddbc1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:19.414083ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072221/publication.txt
observed 781555bd38a7a41f101bcc2e3a0eb079...
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.