OpenTechnical

OT-2026-000073394

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, manifold pressure sensor, vented 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-2026-000073394) never changes.

Identity and time

Publication numberOT-2026-000073394 · never reused
Internal UUID01a0ae92-efb8-7d34-9233-4588fdf67386 · 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-2026-000073394
StatusPUBLIC

Content hashes

Canonical texte2dc6709608ff48e10e9ad9db2b3fa4472bb3b4333a8576292ce0dc0e9e64bda
Markdownce1ff03efb1eac5c889e01937079f02b3d08c12a645a63fb3be9c484c8f9b5d1
PDF
Publication page4b3f498fa551abce8fbe9b987e02be4ed4d78cea77aed4b4a5931dd883a0ad2e
Manifest21e77128f8ef6218916350a68f14c3c210f0b296aaa556efa77455a9717551e4

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
SignatureTqa6Z0R3SygWA1RE5AmUuZlPKNVi7fA9hu7hzLXqC42dQH+W0wbjrMiKC7pqajgoTSgDaaMfLpiF6llVNpSlCw==
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

2026-09-17T10:21:24.623529ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073394
observed 4b3f498fa551abce8fbe9b987e02be4e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:24.605889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073394/manifest.json
observed 21e77128f8ef6218916350a68f14c3c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:24.585914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073394/publication.md
observed ce1ff03efb1eac5c889e01937079f02b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:24.568656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073394/publication.txt
observed e2dc6709608ff48e10e9ad9db2b3fa44...
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.