OpenTechnical

OT-2026-000073220

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, single stage ejector, manifold pressure sensor, vented before set-down

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-2026-000073220) never changes.

Identity and time

Publication numberOT-2026-000073220 · never reused
Internal UUID01a0ae92-efb6-74ca-9704-e778c5dddb47 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073220
StatusPUBLIC

Content hashes

Canonical textb63cb3ecd60f767a0ff66143da66a6d7f093b03df30df4da4dcefbc8500db5c4
Markdown57723cd7770cd3d802c81bbf8f491ed74aac2a56bf400010994e8221291c375d
PDF
Publication pageb77a4d9272cc5e1118ca7fb8b623af8826bc461c027d80a107f381e70e7f3c7b
Manifest432ab75edd7127ba4c288fa232ee2858646157a1660cefad7754a0e7ddb94af8

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
Signature2zf1IrCRxNIye1zDkIP8vX/Qjdfrnzvt4Q1uxQdZZtDa5WGUqBxXu9pmWKCVdG+8fEcAP5QCsSJFqbd3nsxNAw==
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

2026-09-17T10:21:11.679251ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073220
observed b77a4d9272cc5e1118ca7fb8b623af88...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:11.658966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073220/manifest.json
observed 432ab75edd7127ba4c288fa232ee2858...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:11.638377ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073220/publication.md
observed 57723cd7770cd3d802c81bbf8f491ed7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:11.616652ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073220/publication.txt
observed b63cb3ecd60f767a0ff66143da66a6d7...
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.