OpenTechnical

OT-2026-000089330

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, pump fed, manifold pressure sensor, sustained blow-off 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-2026-000089330) never changes.

Identity and time

Publication numberOT-2026-000089330 · never reused
Internal UUID01a0ae9b-db01-7945-aaec-5517935fcc74 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089330
StatusPUBLIC

Content hashes

Canonical textc5ff5f9e9552ad492b828e1fa5f9f37c9c39bcfe3b3a77f3b3549153bd4b55de
Markdowna9a6c740399d6fed6f00efd2468467a7e3a92b18d5720dce5edcac0ebbd24fca
PDF
Publication page74e2ecd80e29c7bc803de5eb00a51fc59b0e04cf34d44dac5cfcf55a1bf23159
Manifest58f53800634848278aa1db6a968d6e191b4ee5ae947b29b97d709e749b66b56e

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
SignatureyzcvmiTwPQlVx21AKJjx5/enfxnvzsok7U0idJPHAab5qU6QIgeMJJQWUMOaasRtTlithIPWc2DvvJjBuN4YAg==
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

2026-09-17T09:47:22.933859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089330
observed 74e2ecd80e29c7bc803de5eb00a51fc5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:22.915430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089330/manifest.json
observed 58f53800634848278aa1db6a968d6e19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:22.897681ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089330/publication.md
observed a9a6c740399d6fed6f00efd2468467a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:22.878742ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089330/publication.txt
observed c5ff5f9e9552ad492b828e1fa5f9f37c...
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.