OpenTechnical

OT-2026-000077631

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, plant vacuum fed, pressure sensor per zone, 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-2026-000077631) never changes.

Identity and time

Publication numberOT-2026-000077631 · never reused
Internal UUID01a0ae95-2ecf-7ab3-bf19-8759d2747a57 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077631
StatusPUBLIC

Content hashes

Canonical textc93df529e8a9d159ff9c836ca1d66ea8ab108a05fba8d20da77ed8c9a07af376
Markdown4df50ded6dad18fbe034a27de2375a61d5f04c358e31bd7988f8e9821968248c
PDF
Publication page1735b6643a5db1660b53bf53177740bf50bdbff282781cd024e5d370a5ec5cf9
Manifest3a940aef3681647eec6523eb14ff6e0e42b09b26de34b7fccfd2897d4308b1a5

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
SignatureTiQyoLPLz2s0uwy9KvNDSS03TwLWoGzRi6p446iKbkf5Aol+yQv+cUhgji45gxW6VkEKVuBrZ1wJu3v5ySQgAA==
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

2026-09-17T10:07:11.756364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077631
observed 1735b6643a5db1660b53bf53177740bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:11.736416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077631/manifest.json
observed 3a940aef3681647eec6523eb14ff6e0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:11.677659ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077631/publication.md
observed 4df50ded6dad18fbe034a27de2375a61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:11.585035ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077631/publication.txt
observed c93df529e8a9d159ff9c836ca1d66ea8...
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.