OpenTechnical

OT-2026-000028461

Publication integrity record

Six cup vacuum gripper, six outlet manifold, pump fed, 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-2026-000028461) never changes.

Identity and time

Publication numberOT-2026-000028461 · never reused
Internal UUID01a0ae72-e2f6-7c13-8d38-32714d3be70f · 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-2026-000028461
StatusPUBLIC

Content hashes

Canonical text300d3f5b081c6cf825c926becc9465cf5a710a5df0fbddd431fa0bd8c843fc2a
Markdown5ff524590c12bf6bb0e2dc39cd72409fc636ebfe1c0edeb03323d3f329543d62
PDF
Publication page4f6da8d5eca3f84ce5c40cc334ef9dcb0fa3efb02ebcb571bf98b10f9ad5b52d
Manifest815868d38aab3e245a2d591aed7918811a08383b292a0707b20cb952ef2259f4

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
SignaturenfvIv9L1Qe+4dk0y0wrdgWH05xwKpOL5aXXXXm1uY+MJpEYECwQ64Mli4z9oN7SRa6DiKteS07x1ur9iJXaiBA==
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

2026-09-17T11:40:36.136169ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028461
observed 4f6da8d5eca3f84ce5c40cc334ef9dcb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:36.119477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028461/manifest.json
observed 815868d38aab3e245a2d591aed791881...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:36.100802ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028461/publication.md
observed 5ff524590c12bf6bb0e2dc39cd72409f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:36.083307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028461/publication.txt
observed 300d3f5b081c6cf825c926becc9465cf...
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.