OpenTechnical

OT-2026-000082522

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, vented after 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-2026-000082522) never changes.

Identity and time

Publication numberOT-2026-000082522 · never reused
Internal UUID01a0ae97-8cc7-7e52-9e59-8442cb693773 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:22.827170Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000082522
StatusPUBLIC

Content hashes

Canonical text2622b9efdafb16bb0befe644b77caae2c8a26bac7dd2e39858f416353c765503
Markdown0cf285c2cba0f58db05e4b5d16fc6896ab69db547acd02ba73398cd99910ac8a
PDF
Publication page9ffabbae1a92aa771652424faf6f0c5ae59f14e564cab36c174ff8608ec6901e
Manifestf5b53ffac310c5d71dbedd7a690c61ebd2ccad3de0e103128e9aca9ea7887106

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
SignaturePPjzUkKDhjQgDGDMnW4aot7EeOvgA9zSsAtUfYdT2Jc7VfPWh7IrSHjrS9DtKXiFgGS+R+FeU//JpIJDaZ3UDg==
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

2026-10-27T00:41:33.543689ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082522
observed 9ffabbae1a92aa771652424faf6f0c5a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T00:41:33.467062ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082522/manifest.json
observed f5b53ffac310c5d71dbedd7a690c61eb...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T00:41:33.357083ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082522/publication.md
observed 0cf285c2cba0f58db05e4b5d16fc6896...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T00:41:33.243029ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082522/publication.txt
observed 2622b9efdafb16bb0befe644b77caae2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T04:41:36.917322ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082522
observed 9ffabbae1a92aa771652424faf6f0c5a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T04:41:36.843977ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082522/manifest.json
observed f5b53ffac310c5d71dbedd7a690c61eb...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T04:41:36.767312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082522/publication.md
observed 0cf285c2cba0f58db05e4b5d16fc6896...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T04:41:36.620941ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082522/publication.txt
observed 2622b9efdafb16bb0befe644b77caae2...
fetched by grabo-systems from 34.44.131.203, 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent