OpenTechnical

OT-2026-000013081

Publication integrity record

Two cup vacuum gripper, two outlet manifold, plant vacuum 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-2026-000013081) never changes.

Identity and time

Publication numberOT-2026-000013081 · never reused
Internal UUID01a0ae6d-5565-75cb-b712-1c9b255774ab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013081
StatusPUBLIC

Content hashes

Canonical text61ef7776c6b2f1451a72b6f8331c63ea539d45d9b8dbc79d3f29f1de18ea40f5
Markdown1f729fcc08971809a284d243d88712a7e0c0834bbe54446bb6f5ac91238cb620
PDF
Publication page91bff1f2ba7dcdcb812cab732d00d8953e54d7a81941c64e743325cd63572cf9
Manifest1b5107743623b858c3fc4fbe7a3cf023eba77e8cfca03284524943b29cb0d07b

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
Signature6f9z301XdWeUqS7U8fVjItp7x2O2QXciuK/13zmgQWQV2hoBjUWVtXQeRVIg7CwnT9DILSpSIQRJk4Y8+N3WBg==
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

2026-09-17T12:10:55.558898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013081
observed 91bff1f2ba7dcdcb812cab732d00d895...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:55.538816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013081/manifest.json
observed 1b5107743623b858c3fc4fbe7a3cf023...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:55.517906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013081/publication.md
observed 1f729fcc08971809a284d243d88712a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:55.497426ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013081/publication.txt
observed 61ef7776c6b2f1451a72b6f8331c63ea...
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.