OpenTechnical

OT-2026-000018073

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, three stage ejector, supply line pressure sensor, 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-2026-000018073) never changes.

Identity and time

Publication numberOT-2026-000018073 · never reused
Internal UUID01a0ae6e-96fd-7f42-988b-a731156cb953 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:38.350302Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018073
StatusPUBLIC

Content hashes

Canonical text2421f2d43334b1b868a2d33c5950ec0c66c4b61efc568a950e166ee5338eebd8
Markdown4abde040e281baac009377365f359441e39b35e4dcbd58897aaa7eddec70d802
PDF
Publication page9b751a9bc16e9fee4021b59d3b7f69a7fb02c325538924e15a376fe53aee3ebd
Manifest89ac39aed8f39ff715068db432334989af08e3ad031da16366c1517c52ac2c54

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
Signaturer4ItH3Ei6Lfa1+YnhobZOiPFDyBPdoQT+e1KATFIJqamh9TwuGiq/6H9Agv0jadV6sFj9bO64tSfZijZKLqKBA==
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

2026-09-17T12:02:06.855483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018073
observed 9b751a9bc16e9fee4021b59d3b7f69a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:06.838596ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018073/manifest.json
observed 89ac39aed8f39ff715068db432334989...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:06.822476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018073/publication.md
observed 4abde040e281baac009377365f359441...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:06.805697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018073/publication.txt
observed 2421f2d43334b1b868a2d33c5950ec0c...
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.