OpenTechnical

OT-2026-000029063

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, 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-2026-000029063) never changes.

Identity and time

Publication numberOT-2026-000029063 · never reused
Internal UUID01a0ae73-2a9f-77a8-beeb-2056db59922b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029063
StatusPUBLIC

Content hashes

Canonical texta98feab221561b979714cdb31892232923c666ae65b6374e763c09bf371b9788
Markdown875b26d7d42dc0b82a13ca6a53018f710fb9d7160eeff4ba5c34d51775dda5c1
PDF
Publication page639d2a0f8f1ccef074b918bc7a729dd7acd36f06cd6979ddbc7368d4b3bd20af
Manifeste50f680c99bd9744af6e91d44a913e59666704433c2979b46d6f7c5d7bd84ca2

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
Signaturepytuv4gnUZTXoKPx+F01GzO0v8mA5vi49s2qDU1XJ68fcVzCZ3Ytj1e8RIsSSZb611sCH+z2I2Bu+l6TlVW/Bg==
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

2026-09-17T08:20:43.937004ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029063
observed 639d2a0f8f1ccef074b918bc7a729dd7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:43.799099ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029063/manifest.json
observed e50f680c99bd9744af6e91d44a913e59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:43.780172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029063/publication.md
observed 875b26d7d42dc0b82a13ca6a53018f71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:43.699729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029063/publication.txt
observed a98feab221561b979714cdb318922329...
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.