OpenTechnical

OT-2026-000025331

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, pump fed, pulsed 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-2026-000025331) never changes.

Identity and time

Publication numberOT-2026-000025331 · never reused
Internal UUID01a0ae71-5fa7-7b92-a8c9-505858d1f183 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025331
StatusPUBLIC

Content hashes

Canonical text7deda6ad757f2dc1f6c693e4b64eded2d5492d6f796e7d65453c30abd9ec4bfb
Markdown6829f9eca53f4f5bed9d0fd54a4e3c522fc9b83f29f4231d00a603e08adb08ab
PDF
Publication page758b140a7a53b551387cfde5712c38ae3e7c700716ca7334b42c732f23317ae3
Manifest4e037abae351c73bcf37ece34b38883ab09f211b7634639b3d8961e1d27bf5eb

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
Signature1ZDv7TB35MR3PY1exBUr0NIf02OL5pk1AO/+UySqdc6DT5xX1nOoPpcDzXnGJU6GGwxpldmH8ZKVuNJl6W0lDg==
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

2026-09-17T11:47:21.401118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025331
observed 758b140a7a53b551387cfde5712c38ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:21.380104ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025331/manifest.json
observed 4e037abae351c73bcf37ece34b38883a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:21.363654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025331/publication.md
observed 6829f9eca53f4f5bed9d0fd54a4e3c52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:21.345769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025331/publication.txt
observed 7deda6ad757f2dc1f6c693e4b64eded2...
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.