OpenTechnical

OT-2026-000016109

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off before set-down

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-2026-000016109) never changes.

Identity and time

Publication numberOT-2026-000016109 · never reused
Internal UUID01a0ae6e-2d10-79bf-bc87-6aabc6b413cf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:11.237946Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000016109
StatusPUBLIC

Content hashes

Canonical textf85ef8e20d8ede7ea47afc6a53c2e9cb6a17f957b3811e52145a9a30e74a98dc
Markdown1818b64c15b602365302aab40740dd260c6e7b3454f5df0acba668a1803c477f
PDF
Publication pagecc6c2487659b19d988d018945d8fc3cfe167b69cd3e92c0b145a1c5de6fdcfd1
Manifest541d56da6b5765d442aa91c8b4db7e80d8049aa086e3d82ce6b10683d6e87e09

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
Signatureg8lUSGJLQO0YP8sTs1zBjAaCuvh03mcvW/DWcgWBzIaublLjCpq3JFVkApiK5tHmS2SL0iYXaB7SXE4uVYcdBw==
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

2026-09-17T12:03:32.209283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016109
observed cc6c2487659b19d988d018945d8fc3cf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:03:32.191726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016109/manifest.json
observed 541d56da6b5765d442aa91c8b4db7e80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:03:32.174338ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016109/publication.md
observed 1818b64c15b602365302aab40740dd26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:03:32.155326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016109/publication.txt
observed f85ef8e20d8ede7ea47afc6a53c2e9cb...
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.