OpenTechnical

OT-2026-000072631

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, 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-2026-000072631) never changes.

Identity and time

Publication numberOT-2026-000072631 · never reused
Internal UUID01a0ae92-89d9-7563-8a1d-14acd265bc41 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072631
StatusPUBLIC

Content hashes

Canonical text0975e97f48ffa868d8d4ffe2496514f78b13a66b7400dfd118f4c7ff4e49eccd
Markdown887c5eec0ac03aad25d47e44f9af51d07181899d360ee3a96e9536eedb57c1e5
PDF
Publication page72ee908a9be78a3b05b33aa6c1462810049d5e5eed07be793a80628d8c319745
Manifest6307e7676a4a90f30adb7c5481e9f63979153c6193af96c79ce0e70653ee21dd

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
SignatureInTXXeTMKVzVN66OT9rgM3O+rUiVV1Wd9ta0aFyzBRiXaAq8sz7kuHEJ8LS4Xt5spk4Om/ATNS8M8FOPXo2HBQ==
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

2026-09-17T10:22:29.525096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072631
observed 72ee908a9be78a3b05b33aa6c1462810...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:29.506041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072631/manifest.json
observed 6307e7676a4a90f30adb7c5481e9f639...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:29.487419ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072631/publication.md
observed 887c5eec0ac03aad25d47e44f9af51d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:29.470315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072631/publication.txt
observed 0975e97f48ffa868d8d4ffe2496514f7...
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.