OpenTechnical

OT-2026-000014899

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, pulsed blow-off before set-down

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-2026-000014899) never changes.

Identity and time

Publication numberOT-2026-000014899 · never reused
Internal UUID01a0ae6d-d095-7295-94f4-24511a126480 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:47.560717Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000014899
StatusPUBLIC

Content hashes

Canonical text56323d972ddcbe852f8ab03961fd0a08aa9ffa5f7f48259e13e768b00434423f
Markdownc1a9475eb6b12672f0637597e5cd2e2248ef072a0b3b62be35674c751d8e20a2
PDF
Publication page2b49390cdd9835a5a1da1b776f9ef2ed2afb225c74fddf7c21f62ad2f5cafa48
Manifestcf58f55c6fcfd389fa473bf448c08f540fee9b5fb187674411bbbeb07bcd8a7e

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
SignaturecveC90XQ/F65om/QNDpcmFy0hfht1lIfKQ2YGIJvY3t+NeiyQ+txJi831Ngn3TdmaxcY3Bsc/ezEc4npKoAvCQ==
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

2026-09-17T12:06:49.814698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014899
observed 2b49390cdd9835a5a1da1b776f9ef2ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:49.797222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014899/manifest.json
observed cf58f55c6fcfd389fa473bf448c08f54...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:49.779481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014899/publication.md
observed c1a9475eb6b12672f0637597e5cd2e22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:49.761454ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014899/publication.txt
observed 56323d972ddcbe852f8ab03961fd0a08...
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.