OpenTechnical

OT-2026-000028959

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, plant vacuum fed, pulsed 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-2026-000028959) never changes.

Identity and time

Publication numberOT-2026-000028959 · never reused
Internal UUID01a0ae73-2a9e-73b0-a17e-d1742490a31f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028959
StatusPUBLIC

Content hashes

Canonical text348d4d824748760a3f55908d0d6c801a80080ac9cd834058d036c3d885483942
Markdown996f84409c2d9d42ac4b12367f30311535612a6c7d36df53cc4c23821f581b90
PDF
Publication page1b8af42e32ca74e28b2f3956590663dd0f589ed0b93d2cec299c5a679d3e07e7
Manifestfba81116d8dab254b0cd1813d2f31be7c088d1f962520c952b1e8527f1157462

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
SignatureNNFnqYU66rRduZQSFuqb8LK3/werCtXferFSY3zR+XkS7wQpdnrEt2sH8n1mYRXW9orC+xGmMZbl1xKARt3NAw==
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

2026-09-17T08:20:27.187594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028959
observed 1b8af42e32ca74e28b2f3956590663dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:27.045883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028959/manifest.json
observed fba81116d8dab254b0cd1813d2f31be7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:27.027284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028959/publication.md
observed 996f84409c2d9d42ac4b12367f303115...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:27.005886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028959/publication.txt
observed 348d4d824748760a3f55908d0d6c801a...
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.