OpenTechnical

OT-2026-000022825

Publication integrity record

Three cup vacuum gripper, three outlet manifold, plant vacuum fed, 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-2026-000022825) never changes.

Identity and time

Publication numberOT-2026-000022825 · never reused
Internal UUID01a0ae70-46ea-765a-ae9b-5fdbec166082 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022825
StatusPUBLIC

Content hashes

Canonical text01dde59149703c0e12ea2ec0b681fdb2ff6496cfc79ad788e85b3de8639aaf94
Markdown181d6d20ea554e0d4ea1a02cf66dda9549efffdf74e8afc90304e5c44c571b13
PDF
Publication pagedae47f63ef7555fd2654627f400030d30bdb1d57757b2c9f1a67d090f2aab94b
Manifest4fe29d597416524acff4119522c80a2c0eb0bcf15db8fd3a925c18de8ac4d135

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
Signature95y1BEZQ4Mml0K/QzhtxaoMzVBe8470aijYMLMFe3vktW18uNVqDJgkVPKq6Y3+v1+FZsWCIaYH0wLKjQs+FAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:52:21.372503ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022825
observed dae47f63ef7555fd2654627f400030d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:21.355873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022825/manifest.json
observed 4fe29d597416524acff4119522c80a2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:21.337598ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022825/publication.md
observed 181d6d20ea554e0d4ea1a02cf66dda95...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:21.319782ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022825/publication.txt
observed 01dde59149703c0e12ea2ec0b681fdb2...
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.