OpenTechnical

OT-2026-000020436

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, supply line pressure sensor, 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-2026-000020436) never changes.

Identity and time

Publication numberOT-2026-000020436 · never reused
Internal UUID01a0ae6f-437b-7146-8baf-8f9953ce52dd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020436
StatusPUBLIC

Content hashes

Canonical text53a63811de7fe40010725e94bfbbd461f4a5f7001556bcdd0671ee113ef9c504
Markdowne58bd6601d67897ba556ae877d48f1fc66b1fae049eb6e9ba9d33a63ad4233fc
PDF
Publication pagedf4df63a3946c804ae41e59d1bd37c9d9cae138b30e19b5ad4fcecb0467b5b01
Manifest3bed82ece9be21d55ea9ec0a554d0752481b9ee6d533c339b893b9fcc26b4830

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
SignaturePzsBXIB6+OjI+CHTzO023A3+dK0MxZZfNtyMMTjBhbnrT+NGrmdtIRTo9ko5UBgvSX7SkscJWQSW8fU/3Dj1Dg==
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

2026-09-17T12:00:21.555766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020436
observed df4df63a3946c804ae41e59d1bd37c9d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:21.532581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020436/manifest.json
observed 3bed82ece9be21d55ea9ec0a554d0752...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:21.512829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020436/publication.md
observed e58bd6601d67897ba556ae877d48f1fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:21.491933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020436/publication.txt
observed 53a63811de7fe40010725e94bfbbd461...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:25.338842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020436
observed df4df63a3946c804ae41e59d1bd37c9d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:25.318922ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020436/manifest.json
observed 3bed82ece9be21d55ea9ec0a554d0752...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:25.298212ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020436/publication.md
observed e58bd6601d67897ba556ae877d48f1fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:25.281985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020436/publication.txt
observed 53a63811de7fe40010725e94bfbbd461...
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.