OpenTechnical

OT-2026-000072153

Publication integrity record

Three bellows cup vacuum gripper, three 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-2026-000072153) never changes.

Identity and time

Publication numberOT-2026-000072153 · never reused
Internal UUID01a0ae92-47c2-70b1-90df-cb37e62df37a · 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-2026-000072153
StatusPUBLIC

Content hashes

Canonical textb58d09a3ab8a880c030216d2e2018d02fc394ae6fa769049d0bb19327b5132d3
Markdown87f62b46ff4c28056d52ce103e567d981f2c3c52dfcdf47f8f3237d5f4a08b45
PDF
Publication page9bbc36a4cffa2bc15127ff0353d56616f76be310846250b7424aa61f5be50ee1
Manifeste9f91eab00c749bf9f0e3c809140d2d3a19eb635e80292c89507c4f64c74756c

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
SignatureGJYEZoo3aMZZpx43A4OQc1wkaO6xH7MF+NalPyTxB+8FmDzUmbJDdUh1IbdgCMjYRBh3qjUGy6k74yxx5lewCw==
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

2026-09-17T10:23:15.074103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072153
observed 9bbc36a4cffa2bc15127ff0353d56616...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:15.056729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072153/manifest.json
observed e9f91eab00c749bf9f0e3c809140d2d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:15.039972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072153/publication.md
observed 87f62b46ff4c28056d52ce103e567d98...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:15.024427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072153/publication.txt
observed b58d09a3ab8a880c030216d2e2018d02...
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.