OpenTechnical

OT-2026-000012554

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, pump fed, pulsed blow-off 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-2026-000012554) never changes.

Identity and time

Publication numberOT-2026-000012554 · never reused
Internal UUID01a0ae6d-39f7-7998-95a7-74380ff5c9ad · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012554
StatusPUBLIC

Content hashes

Canonical textba9c82ebc64c1d1f6e201db86f7a834a86ac9d0f1e1fff4ba290de0b715ab2a8
Markdown52b92bbe58d33fbd2c634305e7738bf59c536c0a1fcb448608f678bcc3adb207
PDF
Publication page1ed2892008b839e5c98753fdc2710af00a366c7600f61c413317603a14f6044e
Manifest87aaf1c97e3df05402e8a3963a3e6e56ad313a536f2428a2090b496f4478dc54

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
SignatureAhfMq4/QY0ykZ+0+8G9jrFaqbHA9xzapMhWVzHWXHs8RfJyyCyLYw9biI+/2jmDpWrk/8k9VUHb2KxZ3ya8BBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:12:05.990032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012554
observed 1ed2892008b839e5c98753fdc2710af0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:05.972697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012554/manifest.json
observed 87aaf1c97e3df05402e8a3963a3e6e56...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:05.954100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012554/publication.md
observed 52b92bbe58d33fbd2c634305e7738bf5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:05.935437ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012554/publication.txt
observed ba9c82ebc64c1d1f6e201db86f7a834a...
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.