OpenTechnical

OT-2026-000013587

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump 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-2026-000013587) never changes.

Identity and time

Publication numberOT-2026-000013587 · never reused
Internal UUID01a0ae6d-6fcb-7b0b-9bcf-47d375b44848 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013587
StatusPUBLIC

Content hashes

Canonical texta016d95d8ef1663943f4d01cd07ad08eadc1705581bd76b3764b2f6af35b2382
Markdownb0cc96a3f109e5aa968af4f43891d7bb2078be29c3443997477cbe7edbf1ff48
PDF
Publication page55c7998ebce933d7821447b17d637610cd67a2910bb5e2f3607c86e79ebd3190
Manifeste1e4b37cb31f8c3f542aba6dc3bb59fa284ebed359986fa75e56d6080e2790ae

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
SignatureAAJC6DuXcYDYVaIl9S5zUd6jn7w5ybxYv/bkPKHVNHRx1+uVlup4RKQQpYBfX2v1UbTwqjPpoUB/NF+IWLFsAA==
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

2026-09-17T12:10:08.282882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013587
observed 55c7998ebce933d7821447b17d637610...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:08.261892ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013587/manifest.json
observed e1e4b37cb31f8c3f542aba6dc3bb59fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:08.240446ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013587/publication.md
observed b0cc96a3f109e5aa968af4f43891d7bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:08.218600ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013587/publication.txt
observed a016d95d8ef1663943f4d01cd07ad08e...
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.