OpenTechnical

OT-2026-000104289

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pulsed blow-off 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-2026-000104289) never changes.

Identity and time

Publication numberOT-2026-000104289 · never reused
Internal UUID01a0aea5-3420-75c9-a1ad-93548e6573d6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:17.519068Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104289
StatusPUBLIC

Content hashes

Canonical text2bc5bf9bb0269b8682c59c2936cf770a9c92d028ba34bcae3f6f479d77dab295
Markdownb773034ee08a28778b834f53b8123b2fa3acbbb7a0c08f72da67529a86b14826
PDF
Publication page92dac6ba12a94e90e0cbb78ae39fcf98d35e7107a0d6df218a499fe6b569af4e
Manifestd2b1c3fe2df64076da4b7124da631b72e1d70cc521d589f5251a03f5f7fa48dc

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
SignaturerUAzAbGcq8CKKasQefVPBLMRofZvvXeIkRNoN6pPpJ3y6grseIamKcRc2poiUXoip9e87Z1oQ8BtgBZPS76zDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:20:24.714713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104289
observed 92dac6ba12a94e90e0cbb78ae39fcf98...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:24.697979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104289/manifest.json
observed d2b1c3fe2df64076da4b7124da631b72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:24.678863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104289/publication.md
observed b773034ee08a28778b834f53b8123b2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:24.657527ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104289/publication.txt
observed 2bc5bf9bb0269b8682c59c2936cf770a...
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.