OpenTechnical

OT-2026-000081738

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, supply line 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-2026-000081738) never changes.

Identity and time

Publication numberOT-2026-000081738 · never reused
Internal UUID01a0ae97-0f74-733d-82f1-c49e45e0adfc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081738
StatusPUBLIC

Content hashes

Canonical text89786bcee96b2670a91daa7e764ca75c5f3c71b04a952412e485e80e0f236fd9
Markdowna2b0e210f99e913c924a5529c98f9701372b755aed233366e11877607ab1ac3b
PDF
Publication page59849466a267b47015f070495df1b6c32803b544714d6d499c1e6f8f6f0454ae
Manifest6a46872b89d73732983214f80e71840ab519235026de7a5e2e6a2a114d7c031d

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
SignatureEb0seH9Y8vGGeM8ydzAL7zXmWlwfXm9H8Rt7p8vFXkm+FBPMOC/F7p9mqPnu05ysziKN5KOKRP1Rb9HPE82GAA==
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

2026-09-23T08:41:29.152639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081738
observed 59849466a267b47015f070495df1b6c3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-23T08:41:29.095112ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081738/manifest.json
observed 6a46872b89d73732983214f80e71840a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-23T08:41:29.017248ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081738/publication.md
observed a2b0e210f99e913c924a5529c98f9701...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-23T08:41:28.941746ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081738/publication.txt
observed 89786bcee96b2670a91daa7e764ca75c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T09:59:49.224481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081738
observed 59849466a267b47015f070495df1b6c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:49.207585ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081738/manifest.json
observed 6a46872b89d73732983214f80e71840a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:49.189518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081738/publication.md
observed a2b0e210f99e913c924a5529c98f9701...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:49.171516ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081738/publication.txt
observed 89786bcee96b2670a91daa7e764ca75c...
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

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