OpenTechnical

OT-2026-000081528

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, two stage ejector, supply line 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-2026-000081528) never changes.

Identity and time

Publication numberOT-2026-000081528 · never reused
Internal UUID01a0ae97-0f71-7e74-b045-941cd4fcdf2f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081528
StatusPUBLIC

Content hashes

Canonical text4e1b1fd5667e158f088a26380595273c728bb4de1b59b5b5401f0b7d535c30c4
Markdowne2a21cb708772fd8ef8c9b9c671b7d3b2d0abbc3e5f67b1105deaf151ca73e9f
PDF
Publication pagef0e6784e0d17987e7292d9e360878608f8a4663c6f88f61dbcb5278cf12a2543
Manifest78a99adad6efcf560ee63382337e41e3a8e0c0733d4e6c95e95fb8bec271b94c

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
SignatureUq2tBjU5m9v6tL7uSqCQtqMyp4+B2da/bCjDHbA87t5rYrZZqGuViMfs8aJF7WcsoaIbleEV2+leaNhZnsR4Cw==
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

2026-09-17T09:59:32.891801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081528
observed f0e6784e0d17987e7292d9e360878608...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:32.874936ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081528/manifest.json
observed 78a99adad6efcf560ee63382337e41e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:32.855984ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081528/publication.md
observed e2a21cb708772fd8ef8c9b9c671b7d3b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:32.837705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081528/publication.txt
observed 4e1b1fd5667e158f088a26380595273c...
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.