OpenTechnical

OT-2026-000028426

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, single stage ejector, manifold pressure sensor, sustained blow-off 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-2026-000028426) never changes.

Identity and time

Publication numberOT-2026-000028426 · never reused
Internal UUID01a0ae72-e2f6-7e28-a3a7-4bea49a3bcbd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028426
StatusPUBLIC

Content hashes

Canonical texte22bc9a8363d5ec0f0215d4a9a523e47724c18f24c3cf5cc1eb148e61a9a6cd2
Markdowne7a48c768aadaa66979fd45d3a2f6db62c3aa2647392680680ece28bc53bba2d
PDF
Publication page34b1577c86bbefbe6fb808a19985db27025114c06b1cf5f8624260283216bc14
Manifest96110001f596cdaef4d77ceb7226e12d8b2bb5830814cefa2cf2963093517293

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
Signatureotr9+3t+0SiGKjMgf2W0Jp1OCzfCemJUCwMMhnNRQY9GsR2B5ZEPtMsa61O9i+qO47Et62JdQ3L4QAba0FcdBg==
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

2026-09-17T11:40:33.552919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028426
observed 34b1577c86bbefbe6fb808a19985db27...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:33.534668ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028426/manifest.json
observed 96110001f596cdaef4d77ceb7226e12d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:33.517483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028426/publication.md
observed e7a48c768aadaa66979fd45d3a2f6db6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:33.498050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028426/publication.txt
observed e22bc9a8363d5ec0f0215d4a9a523e47...
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.