OpenTechnical

OT-2026-000067345

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, vented after 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-2026-000067345) never changes.

Identity and time

Publication numberOT-2026-000067345 · never reused
Internal UUID01a0ae8f-6bd8-79b1-a592-3884a42d7553 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067345
StatusPUBLIC

Content hashes

Canonical textd78ac7cddf314994c118d9ab6d98e235f81f159f94c2cc6149e396c853eee9c1
Markdown3bccf90a0dd9671bed412d67ee2b1c6dc379faf282a8afedbdc590c533f972f9
PDF
Publication paged2185ab2a1eee6beb4cd6d9f831ea0eebe4e533c32eb8900546690731d4db1f9
Manifest8a56ff714c5c0b0355840092410cc3f82e6ce6808eef225a8b199f47b415c213

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
SignaturelarWlOJzxML8QVcc6uz8hAOnDkYeBMg1gM+htutyepRvX2bSAmKHhwZlg4K+1fe0sbnp9d9smGn90v7mVaGZCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:31:31.766601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067345
observed d2185ab2a1eee6beb4cd6d9f831ea0ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:31.749683ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067345/manifest.json
observed 8a56ff714c5c0b0355840092410cc3f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:31.733729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067345/publication.md
observed 3bccf90a0dd9671bed412d67ee2b1c6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:31.717030ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067345/publication.txt
observed d78ac7cddf314994c118d9ab6d98e235...
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.