OpenTechnical

OT-2026-000083449

Publication integrity record

Foam pad vacuum gripper, three zone face, pump fed, 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-2026-000083449) never changes.

Identity and time

Publication numberOT-2026-000083449 · never reused
Internal UUID01a0ae97-c965-75bb-8533-9789c5a1d87f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083449
StatusPUBLIC

Content hashes

Canonical textb2ba6ad3fd0ca340b806f4699b28d8495d9cd65794ef904f221cfa4a40ce9fa5
Markdownf3d4311519ac25013fbb45525b1c665f11efe0c24b66ef7a07a7e22deb55edda
PDF
Publication pagece2d5bd10047b76c9cb53404c0e851733b3cf1ab70dc45bf8de8ebc0a3f8c6d0
Manifestb987d5156a927be9c4c11b7a1dd6c0c45605ce98a46802a5641831460d25a693

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
SignaturedzJhYtZPiiyfy3x5N6yihKpU1NL000411oGCPaRsTgY6BEy8aZ6hOxGTm1hHlEqKlbt8s+poyI3QX3rrQJoQAA==
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

2026-09-17T09:57:52.121872ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083449
observed ce2d5bd10047b76c9cb53404c0e85173...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:52.105624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083449/manifest.json
observed b987d5156a927be9c4c11b7a1dd6c0c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:52.089749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083449/publication.md
observed f3d4311519ac25013fbb45525b1c665f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:52.071368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083449/publication.txt
observed b2ba6ad3fd0ca340b806f4699b28d849...
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.