OpenTechnical

OT-2026-000074254

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, plant vacuum fed, supply line pressure sensor, vented 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-2026-000074254) never changes.

Identity and time

Publication numberOT-2026-000074254 · never reused
Internal UUID01a0ae93-7178-753e-a88e-b5ca60c7e551 · 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-2026-000074254
StatusPUBLIC

Content hashes

Canonical text43bea0afff1bb021373ed62dfe58cc8f700e015521fa8b6b2c3681248d3dcfd1
Markdown139054dea14ec9f4c75663005299bbf2be10050ab317ac164a74f8fb5069849e
PDF
Publication page97c341c1a6a1b86c4bb4ff1d91c4abfb9d26940962c296553f3b81bc94c6e313
Manifeste90cf29ee427410debde67588fb1a0b90f0e05318a9a4bc65e90230e989c79ec

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
SignatureJmmHycuHUS5ip3yyZC08gXoTo5Qqle/tH9UIgWWdTzNRi8qAImPY/Njy7Ki053K0xbnvE11RGgucjYKpWpRRDA==
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

2026-09-17T10:19:09.209483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074254
observed 97c341c1a6a1b86c4bb4ff1d91c4abfb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:09.190458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074254/manifest.json
observed e90cf29ee427410debde67588fb1a0b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:09.172538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074254/publication.md
observed 139054dea14ec9f4c75663005299bbf2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:09.154636ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074254/publication.txt
observed 43bea0afff1bb021373ed62dfe58cc8f...
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.