OpenTechnical

OT-2026-000084521

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, single stage ejector, sustained 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-2026-000084521) never changes.

Identity and time

Publication numberOT-2026-000084521 · never reused
Internal UUID01a0ae98-e25a-75bd-88b3-7a258765741d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:50.163111Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084521
StatusPUBLIC

Content hashes

Canonical textb4b9c388b82152e43867ab904e7ceb24b16266ba9d23efa8648ebc9bbda2d4ba
Markdown4723082200c40b134d10a12af0f778b1d6f54b5591ed5b9820d707d21c4fb968
PDF
Publication page275469be8c2d411c398a45f58085a5ffd92507693414b21791dcbb81ff576f8d
Manifestc210864dd9c3b20693b55a62a56eb89f0a0b0f5c1d7cb848405037c71de896b1

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
SignatureMjyyHRwFwm2eAnziuW0Q8OUOYtcG5HZXvg0+IiS+dOlrJac03seSmaYuIq6eBYW32tExK/FQkuKhnEo/RuHjDw==
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

2026-09-17T09:55:24.130341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084521
observed 275469be8c2d411c398a45f58085a5ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:24.111449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084521/manifest.json
observed c210864dd9c3b20693b55a62a56eb89f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:24.093897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084521/publication.md
observed 4723082200c40b134d10a12af0f778b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:24.075482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084521/publication.txt
observed b4b9c388b82152e43867ab904e7ceb24...
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.