OpenTechnical

OT-2026-000076589

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, 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-2026-000076589) never changes.

Identity and time

Publication numberOT-2026-000076589 · never reused
Internal UUID01a0ae94-b06e-7318-a08b-b14b49f002df · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076589
StatusPUBLIC

Content hashes

Canonical texta433d6d68e02a148dca9c2f60238f3c66e2bc43566f446c854f90b03ec3b9d20
Markdownf8d621948bd6df9c37ba3892a618a1eb088f866caccc5b77c1258685c5dc014c
PDF
Publication page1febbd62dc618cd92a66bb0a383a18e3206d831549343fa007fe65d6cf06041f
Manifest58b33350c553ad623a7592e4bdf51ed9a5dd1e552621ed424cd6e6bb0c176ac0

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
Signature1YC0ZwL2J4TMbEi9sFS31Ppdw2hZykGm09V0BD6F0llaxgXHn02i7bgsenUXdUbg9qpVLCMkM5OMsjdUSMHzCg==
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

2026-09-17T10:09:18.819795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076589
observed 1febbd62dc618cd92a66bb0a383a18e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:18.801350ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076589/manifest.json
observed 58b33350c553ad623a7592e4bdf51ed9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:18.777649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076589/publication.md
observed f8d621948bd6df9c37ba3892a618a1eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:18.760164ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076589/publication.txt
observed a433d6d68e02a148dca9c2f60238f3c6...
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.