OpenTechnical

OT-2026-000010425

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, 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-2026-000010425) never changes.

Identity and time

Publication numberOT-2026-000010425 · never reused
Internal UUID01a0ae6c-0ee6-7653-85ee-e7f6bc54bff4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:11:52.445886Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000010425
StatusPUBLIC

Content hashes

Canonical textb124463d095f1f21303224b64179d713f2a9e353a788ae0fc7c9fd4f8ca035ba
Markdowne542be2975e7d9c5d39bf338bf1fc878a3327b6679d4d56fdfea7a644e0c2a33
PDF
Publication page109055d31521faa54cd58a156a1fd4eb0da87b13514529f46788f1705636f882
Manifest67cabccf8d40f9873c9c1a4e54585c91b4e17915ff569dea7d1ee99692781650

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
SignatureS99nFyj0t03eCW4F1I9Yuo8Omv444F4F63fOhSoBZ0gOlBhyRX0PLdwa1Naji2QIPxbYEa3i4a2AeIKCLHS6Dg==
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

2026-09-17T08:43:35.489692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000010425
observed 109055d31521faa54cd58a156a1fd4eb...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:43:35.033876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000010425/manifest.json
observed 67cabccf8d40f9873c9c1a4e54585c91...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:43:34.578912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000010425/publication.md
observed e542be2975e7d9c5d39bf338bf1fc878...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:43:34.218395ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000010425/publication.txt
observed b124463d095f1f21303224b64179d713...
fetched by grabo-systems from 34.44.131.203, 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.