OpenTechnical

OT-2026-000004913

Publication integrity record

Porous face vacuum gripper, six outlet manifold, ejector fed, pressure verified at each zone

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-2026-000004913) never changes.

Identity and time

Publication numberOT-2026-000004913 · never reused
Internal UUID01a0a927-9be0-78d7-87aa-7594b670ba88 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:39:00.451766Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004913
StatusPUBLIC

Content hashes

Canonical text1c0f72de61dcf5fb9f08d9a41ad082da676df35a60454ac4e2c79abff38883df
Markdownb1b37d638064b478515edf73f4de76846d2205bae82f1736865d8ae2fdff6885
PDF
Publication page5ffce5a168040d1e8905850f29c1f8ef689e1c3ef2e09ad47cd4d3de5c7de1d0
Manifest7655a1bb11323c127dd4b7747fa5cea344249402ba3dc850da2167325e94a4df

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
SignaturelT2aJLZcIXQcxhTj5kp5OeCRuIUNUnRlqSWha4MEoMP/9E5q9k1wqbpL8QN9wI2U1XmIRJZCvkiTkkebygL5Cg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:05.415769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004913
observed 5ffce5a168040d1e8905850f29c1f8ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:05.401454ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004913/manifest.json
observed 7655a1bb11323c127dd4b7747fa5cea3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:05.387733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004913/publication.md
observed b1b37d638064b478515edf73f4de7684...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:05.372919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004913/publication.txt
observed 1c0f72de61dcf5fb9f08d9a41ad082da...
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.