OpenTechnical

OT-2026-000064477

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, supply line pressure sensor, vented after 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-2026-000064477) never changes.

Identity and time

Publication numberOT-2026-000064477 · never reused
Internal UUID01a0ae8d-a461-7693-a1d8-dda4058f0ff1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:33.392114Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064477
StatusPUBLIC

Content hashes

Canonical textf11fc4aa914e0810d97a6f41227791433deaa7587ad94835d0aa7dcb41f1727f
Markdownd47c52f8bd091db7312818113c9e349d09e0ce4ea2cedea26c13bb63c7dbdda3
PDF
Publication page85074397f707c5bd4a85b9006d261c7a5add87b61becbb307a0a9ac68f3459e1
Manifest750b9550bf260cd3025d8b73d0f7c05e843920597b9efeccbc839014b5637782

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
SignaturerabMUhhbx30Qjek7aVfU9rL8Tq/31hnJ+usP8X2QWslkFE8OC/r3CJZkuJ/uzZEjZ48rfrnHFtcqzGPTouWsDQ==
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

2026-09-17T10:36:40.261554ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064477
observed 85074397f707c5bd4a85b9006d261c7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:40.242062ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064477/manifest.json
observed 750b9550bf260cd3025d8b73d0f7c05e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:40.222673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064477/publication.md
observed d47c52f8bd091db7312818113c9e349d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:40.204568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064477/publication.txt
observed f11fc4aa914e0810d97a6f4122779143...
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.