OpenTechnical

OT-2026-000067721

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold pressure sensor, vented after 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-2026-000067721) never changes.

Identity and time

Publication numberOT-2026-000067721 · never reused
Internal UUID01a0ae8f-c4f9-76de-9847-58dfaefd8dbd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067721
StatusPUBLIC

Content hashes

Canonical textee9c352d1ba857dcbf0324f246c2f4e7003e35f171e70f2d1561d186b8e9f022
Markdown1723fa1b473c4ea1a4ef76f55393e2fc66de9863f7e93305a9accfca26203f57
PDF
Publication pageb15d338312b47227832245421e6175c19f38e72e9920c373e876da0cab92db23
Manifest2fc0aa40b079fee63b59962247bdea37b9ec12936f5e94fc017d5fcbbf4acc9d

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
SignaturePloHzjp3i8nGpHM4vqQjNvcHZy+ejGpvTT8FKjEFMIi13ak2b+W/zVAdKzi/34HtsM9CkHIwXmUrNRJ0wBAdAQ==
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

2026-09-17T10:29:56.111796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067721
observed b15d338312b47227832245421e6175c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:56.095252ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067721/manifest.json
observed 2fc0aa40b079fee63b59962247bdea37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:56.078996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067721/publication.md
observed 1723fa1b473c4ea1a4ef76f55393e2fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:56.062308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067721/publication.txt
observed ee9c352d1ba857dcbf0324f246c2f4e7...
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.