OpenTechnical

OT-2026-000074180

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000074180) never changes.

Identity and time

Publication numberOT-2026-000074180 · never reused
Internal UUID01a0ae93-7178-7c7e-a45b-6a3bcc9f754d · 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-2026-000074180
StatusPUBLIC

Content hashes

Canonical text331c8bae3e9847e61b1350b9dffc94ffbc65611282e776a4e62f28855c600a9f
Markdown39e814eb75f426e576d8ec536407a1bc3160279f758f3701c7ff339e9c718454
PDF
Publication page12a135cc4c1191015865d4d2e1360c7eabdb4083f488505cac2c6d0b12809c19
Manifestc5cc0ac341df498a3b8f703fed11d4122451f1f7ab06656bb834ae40c848c68f

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
Signature6yPkJLHAMYwDpuUktX0Nplj/hrbkB7nFO7yY92JChMdMmtlKrfnLY0wYwVXvI6f/sPJhKlcxXA3pmPjTWNx1BQ==
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

2026-09-17T10:19:01.919758ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074180
observed 12a135cc4c1191015865d4d2e1360c7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:01.905126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074180/manifest.json
observed c5cc0ac341df498a3b8f703fed11d412...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:01.888544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074180/publication.md
observed 39e814eb75f426e576d8ec536407a1bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:01.870725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074180/publication.txt
observed 331c8bae3e9847e61b1350b9dffc94ff...
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.