OpenTechnical

OT-2026-000104254

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, three stage ejector, 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-2026-000104254) never changes.

Identity and time

Publication numberOT-2026-000104254 · never reused
Internal UUID01a0aea5-3420-7c5a-93f5-e78971ae7059 · 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-2026-000104254
StatusPUBLIC

Content hashes

Canonical text5b8fa89c50a9fbe3ab4970a0616e2b02a5db5d09c2fd6da3762326275b2d47be
Markdown756e077a9f212b70bd9facf74d1d1d165e2aef939114a17f9367623d590649eb
PDF
Publication page035ebcf7d9da6a75e4340dd205f95c82cf027456791668b75cd15c76a482b75d
Manifest9c4905d6f1f73856f01e45ed16c4d8b968663369ffe188da76819329172b8d22

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
Signatureszo5eVVuJACYoucSkkJMpCjPy+k+TU72uurUzPiwM4TK3g31rmlztAhJrhjzS92g5vlyd+4uom8JHS5I97nLAw==
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

2026-09-17T09:20:21.949766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104254
observed 035ebcf7d9da6a75e4340dd205f95c82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:21.933896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104254/manifest.json
observed 9c4905d6f1f73856f01e45ed16c4d8b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:21.916313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104254/publication.md
observed 756e077a9f212b70bd9facf74d1d1d16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:21.899615ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104254/publication.txt
observed 5b8fa89c50a9fbe3ab4970a0616e2b02...
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.