OpenTechnical

OT-2026-000012423

Publication integrity record

Foam pad vacuum gripper, three zone face, 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-2026-000012423) never changes.

Identity and time

Publication numberOT-2026-000012423 · never reused
Internal UUID01a0ae6d-39f6-74b7-b8df-e1ddcf71d4aa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012423
StatusPUBLIC

Content hashes

Canonical text697b6056c63fd4f344588c3752626309d2d3d85f14d6fe41c5d6e894b838a2b4
Markdown8ca9ead7e49bdb71c52bf7ae90da1cd77030aa2c3b5ff6b2e42cd2bad9985510
PDF
Publication page062813dbbef9ad4fc3f082faa3bbd38a1badc91d74b0ffb8843c066554d47314
Manifest8bec22134c6115307d3c5ba6b161f73aa9ba57658b106765959ce3320c48701c

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
SignatureaCI4IL002mKw0WckxZjQdDNsgsvN0oFGAYRvhAd8KbDQcMrUfAnVyVFe+74rdGZuks90KfYEFBfTveEngQUvBQ==
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

2026-09-17T12:11:55.210660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012423
observed 062813dbbef9ad4fc3f082faa3bbd38a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:55.191644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012423/manifest.json
observed 8bec22134c6115307d3c5ba6b161f73a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:55.172848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012423/publication.md
observed 8ca9ead7e49bdb71c52bf7ae90da1cd7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:55.156550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012423/publication.txt
observed 697b6056c63fd4f344588c3752626309...
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.