OpenTechnical

OT-2026-000021514

Publication integrity record

Foam pad vacuum gripper, common isolation valve, single stage ejector, 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-2026-000021514) never changes.

Identity and time

Publication numberOT-2026-000021514 · never reused
Internal UUID01a0ae6f-865e-74af-ae17-111b72c01cdd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021514
StatusPUBLIC

Content hashes

Canonical text37a40b9136b73bfb1e369c4bb16b8a1c8294bbacce57973067f596ed483fcd5e
Markdowna92802ef018a4b4fbeb3159625e0cd411e066f2f6f40b25ce46557e4467607be
PDF
Publication page2471c2af24201f857f1197b44d7ef458de38033e70300557c95b5a2c9e227843
Manifest1828218ac776bd2e2d7ce97d05410647659e3202a0be699132a4868c3d4f270f

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
SignatureYqpQJ7LYrP0Obv7NfWi5rgt8GauJjJordj900Ie3WQQ6Dn5Dgzad/e8aQPdMsGaHC8BwMBm3gIMqSRHERT75Bg==
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

2026-09-17T11:54:49.243837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021514
observed 2471c2af24201f857f1197b44d7ef458...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:49.222394ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021514/manifest.json
observed 1828218ac776bd2e2d7ce97d05410647...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:49.205297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021514/publication.md
observed a92802ef018a4b4fbeb3159625e0cd41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:49.188183ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021514/publication.txt
observed 37a40b9136b73bfb1e369c4bb16b8a1c...
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.