OpenTechnical

OT-2026-000012149

Publication integrity record

Four cup vacuum gripper, four 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-2026-000012149) never changes.

Identity and time

Publication numberOT-2026-000012149 · never reused
Internal UUID01a0ae6d-39f4-7972-8873-2a6b2b9a1266 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012149
StatusPUBLIC

Content hashes

Canonical textfdd0cbb31238ff3c1b88ed33bac8fe2b7d5473764cfa5663d292054ec270af47
Markdowne45156146707b4cd809046ca072f8addc6f1b983c9d1b328a0a2fd90b1ef318c
PDF
Publication pagef2c5ae3daa705ef4b73a21c5e76ccbe05cd9fb69083a7bf77cbae7439e0b1b65
Manifest06097d30ccd82d9d4f7fde9fec3aa01d67a1853e1e3440a3fa50d1785ad144e9

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
Signature8sB7mmgxf9wzsrwhMF3EIv0WNwbWQbQBb1v51ozZE6VI0vOQAFYCwLJfOi0zDdbWZx8jL970q4LaFnKhUe4QBA==
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

2026-09-17T12:11:02.615556ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012149
observed f2c5ae3daa705ef4b73a21c5e76ccbe0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:02.593992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012149/manifest.json
observed 06097d30ccd82d9d4f7fde9fec3aa01d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:02.571917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012149/publication.md
observed e45156146707b4cd809046ca072f8add...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:02.550691ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012149/publication.txt
observed fdd0cbb31238ff3c1b88ed33bac8fe2b...
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.