OpenTechnical

OT-2026-000089640

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, pump fed, manifold pressure sensor, sustained 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-2026-000089640) never changes.

Identity and time

Publication numberOT-2026-000089640 · never reused
Internal UUID01a0ae9c-1a21-7d06-b4fc-60bde8e01798 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089640
StatusPUBLIC

Content hashes

Canonical text9e66599ebb683ac47c034d018af6f8013bd3850caf1e0cb77cbf8ba45a3a86c4
Markdown22004f1457d5b364e8d14fc5df31962b22f63fdbb30b45c24f26e7ba77201d3a
PDF
Publication page2c29e28fbfc5466521da9e5d075bc30bf76b8b2d28b348260bc70c4d80f373b6
Manifest39c5ae69c76e6e42f92184baedc5cffa21fee6c04d0b850d57e757510af16bef

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
SignatureGZHEd1qFXVXiFprq/PgmpjxdxVQPWjQ17CIB0WtetQI/cHf0xhjEhr4zDP13yYMqJmiMgXUYu+LExLgVO8u8Cw==
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

2026-09-17T09:46:37.763220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089640
observed 2c29e28fbfc5466521da9e5d075bc30b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:37.745839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089640/manifest.json
observed 39c5ae69c76e6e42f92184baedc5cffa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:37.727616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089640/publication.md
observed 22004f1457d5b364e8d14fc5df31962b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:37.708652ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089640/publication.txt
observed 9e66599ebb683ac47c034d018af6f801...
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.