OpenTechnical

OT-2026-000104028

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, two 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-2026-000104028) never changes.

Identity and time

Publication numberOT-2026-000104028 · never reused
Internal UUID01a0aea5-341e-7f95-bdb2-980f35b09b2e · 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-2026-000104028
StatusPUBLIC

Content hashes

Canonical textde9d3cea3eb20f69583f6b484586bd5abdca77ac983f02c727037bca9e496b5c
Markdown8fdaceadea7ca1d90693d954e91da780b8aeacd71fac0d7489078ae85b10c6ed
PDF
Publication page8e888bbff2eed47f46aa8f50e5f789a5f95110c8dbf92c4ec96ddfa50e40f2ce
Manifest4a4d8bd27e381bc35eb3062c2bc7308501ce7a55242f8a076c5cf1015fdbf8c1

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
SignatureSrbL/+Uj86rimqO6xdvXC7emK92gthTnlSomCadeil2MD9XJ+VDOqQ/62zfMPXu8Ur14BpMClwf1XstDHU2jBA==
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

2026-09-17T09:20:05.420675ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104028
observed 8e888bbff2eed47f46aa8f50e5f789a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:05.403917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104028/manifest.json
observed 4a4d8bd27e381bc35eb3062c2bc73085...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:05.384562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104028/publication.md
observed 8fdaceadea7ca1d90693d954e91da780...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:05.367639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104028/publication.txt
observed de9d3cea3eb20f69583f6b484586bd5a...
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.