OpenTechnical

OT-2026-000030079

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, 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-2026-000030079) never changes.

Identity and time

Publication numberOT-2026-000030079 · never reused
Internal UUID01a0ae73-ac4a-757d-94e4-513d76e568b2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030079
StatusPUBLIC

Content hashes

Canonical textf9ee26bb5860ca82082e5db0733c81e4775dd7683edf417a8b43c9f628d9afc8
Markdown7bd1ff39be05c4f0a9d7f17cd0073d397123092db306983fe9b2d098d2c58b1e
PDF
Publication page21d51df320b28f276994f9b2e7a5a7aa1e8a2f9fc88b37446517ee2768ae2165
Manifest7bbc098dd26e5ee1cfededba92d6c2b19a44f817aaf0b6170481710c7a203e0c

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
SignaturetzqWQgJVGeh33TnDB9zxYLtHcX9IxYQcOhz+vqcepCDH6ZTho8U9tSKYrUfkjEQoYwhtYf6T6+RffiPeu8v2Aw==
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

2026-09-17T11:38:49.555270ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030079
observed 21d51df320b28f276994f9b2e7a5a7aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.538247ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030079/manifest.json
observed 7bbc098dd26e5ee1cfededba92d6c2b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.522899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030079/publication.md
observed 7bd1ff39be05c4f0a9d7f17cd0073d39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.506054ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030079/publication.txt
observed f9ee26bb5860ca82082e5db0733c81e4...
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.