OpenTechnical

OT-2026-000087550

Publication integrity record

Three cup vacuum gripper, three zone face, two stage ejector, supply line pressure sensor, sustained blow-off before set-down

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-2026-000087550) never changes.

Identity and time

Publication numberOT-2026-000087550 · never reused
Internal UUID01a0ae9a-cd52-7baa-ace5-2ae82167e46e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087550
StatusPUBLIC

Content hashes

Canonical textc1b5f5e6b125d5ae2ad291e523515e172237452ee7267f3e6ba4d89666dd22aa
Markdownadce2d735ada20acb37a62535d7fa7b025490c76988a7e4092dcbd7ea53e3b5a
PDF
Publication page087aa0c58a3f1c40c4c854c3e8d93a25c7dd86c183a02ef14dd3c93419989fd9
Manifest815d56ebfb7c53130fb9628c1ce2cb1e69f64b3deff19e94ac442c786607d79d

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
Signature6ZirIC3hK2gmBSRieGGlI5pcQUbK+Ate657gD13uMBFUOmAtHsRlBwPOu0z+wpaseZEXCkdRFpSMBcrmMUm2BQ==
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

2026-09-17T09:50:53.542539ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087550
observed 087aa0c58a3f1c40c4c854c3e8d93a25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:53.525540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087550/manifest.json
observed 815d56ebfb7c53130fb9628c1ce2cb1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:53.507803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087550/publication.md
observed adce2d735ada20acb37a62535d7fa7b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:53.488833ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087550/publication.txt
observed c1b5f5e6b125d5ae2ad291e523515e17...
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.