OpenTechnical

OT-2026-000066449

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, 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-2026-000066449) never changes.

Identity and time

Publication numberOT-2026-000066449 · never reused
Internal UUID01a0ae8e-ce40-7a39-a674-da0c27066ffd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:49:49.649149Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000066449
StatusPUBLIC

Content hashes

Canonical textb32a24c2385fe8e942912e039cdc0a5764861b59b0a547b49da0ed3cbb74e6ef
Markdownbcfb237c57e260f3c428a0728ce49ed57f26fc10540646a2be73acb003c7df0d
PDF
Publication page0cee8337966e7d786db8c96c047050fb1c81c04e4b104d33d0bffb2a15af6609
Manifest21c2fdd56a798ff1744152c0f052d176bc37dc98da1b86e699b24f8493a590f4

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
Signature80uSCtCVS0r55OHDg0cSvwGkKRqlEJhEKFn0FcmjFZhiDSXyUofrG+dKw6nJh/peqsRX8tJvaL9GcA6hDOJaBg==
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

2026-09-17T10:32:41.788594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066449
observed 0cee8337966e7d786db8c96c047050fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:41.770766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066449/manifest.json
observed 21c2fdd56a798ff1744152c0f052d176...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:41.752977ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066449/publication.md
observed bcfb237c57e260f3c428a0728ce49ed5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:41.737386ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066449/publication.txt
observed b32a24c2385fe8e942912e039cdc0a57...
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.