OpenTechnical

OT-2026-000027069

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000027069) never changes.

Identity and time

Publication numberOT-2026-000027069 · never reused
Internal UUID01a0ae72-3453-73be-b5cf-56f9ccaf5299 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027069
StatusPUBLIC

Content hashes

Canonical text1ec1e19e05c5c031487541b1390926999d2c95b64e074a980aface0c362a061e
Markdownfecb4848082b35011a8cea2d32578fed25007ce7c071f4634a74edadf3452d54
PDF
Publication pagec3e1bd8bf022d51f4247e5897f4e84809059c63aed8493985dd70f6696ce0801
Manifestb64f3f8e5d0d5e037979132aed49ec5b2abb805a8e2cfbabf9c153b206f04a3b

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
SignatureS0fIipm8LHTj0vVik0NUlIHaQjH1YwoWlezUX39M9DNvRSa6ZMs49uegfLHF5GpA8aA/6SefCqo1kDjHUIvOBg==
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

2026-09-17T11:43:49.899961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027069
observed c3e1bd8bf022d51f4247e5897f4e8480...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:49.881845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027069/manifest.json
observed b64f3f8e5d0d5e037979132aed49ec5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:49.866855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027069/publication.md
observed fecb4848082b35011a8cea2d32578fed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:49.852153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027069/publication.txt
observed 1ec1e19e05c5c031487541b139092699...
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.