OpenTechnical

OT-2026-000074275

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, manifold pressure sensor, pulsed 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-2026-000074275) never changes.

Identity and time

Publication numberOT-2026-000074275 · never reused
Internal UUID01a0ae93-7178-7aa2-9b1a-1906c441c7e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074275
StatusPUBLIC

Content hashes

Canonical textc1594c8ce0772c2f5207705d961157c1087a2347263cb0160f09a4d8bea1a55f
Markdown8251c811ff0e8dcc075ea92335a5b7499553b4ed7e1d492792ea26515e6f32a4
PDF
Publication page5bfeb2c823bbbfc6dc3d8a283f260d3565f74022a7b455fa2f7b9c643e46e1ff
Manifest8830eda394f63b642a06e78195cbccfdf5e796399456516276f3b24ffcce64aa

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
Signature7SbdmXQwfwPoeyWV1DR/2lnHrzSsgDxc1Ma2nxsqujkOefP3dPZoPAY705c/29FxzAeSZTrUWasQSKVEUDfaBg==
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

2026-11-05T04:23:12.458633ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074275
observed 5bfeb2c823bbbfc6dc3d8a283f260d35...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-11-05T04:23:12.443890ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074275/manifest.json
observed 8830eda394f63b642a06e78195cbccfd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-11-05T04:23:12.411860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074275/publication.md
observed 8251c811ff0e8dcc075ea92335a5b749...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-11-05T04:23:12.367472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074275/publication.txt
observed c1594c8ce0772c2f5207705d961157c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-29T08:41:27.795086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074275
observed 5bfeb2c823bbbfc6dc3d8a283f260d35...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T08:41:27.715341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074275/manifest.json
observed 8830eda394f63b642a06e78195cbccfd...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T08:41:27.636128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074275/publication.md
observed 8251c811ff0e8dcc075ea92335a5b749...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T08:41:27.437979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074275/publication.txt
observed c1594c8ce0772c2f5207705d961157c1...
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