OpenTechnical

OT-2026-000091108

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, pressure sensor per zone, sustained 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-2026-000091108) never changes.

Identity and time

Publication numberOT-2026-000091108 · never reused
Internal UUID01a0ae9c-f16b-774d-853d-88866e314edf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091108
StatusPUBLIC

Content hashes

Canonical text403aa363b8c439c0d423e634a7c729bc7869c80b22d8ab854483f5939d2beef3
Markdown3e974eb42c5a3e51f794b2740bb69c9ba2aa387d249e828d58694680ecb31d7f
PDF
Publication page84f5b073c3b000447dd2f41ccc1528c30e000e541faeb4d6e401392e6ceb6144
Manifestc8ada8d9bce87c4ff5e6ba920368a1edccb898701a907d17bd8679c46559319f

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
SignatureJ9xUckH6+5HedO1ovcYQzAF1NvdNwLKoCaDlVcCbv+o5qt4RC20X8C/OvoOu9NveRwwSSNAHUjE1Nt8FbsagBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:43:15.546934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091108
observed 84f5b073c3b000447dd2f41ccc1528c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.529556ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091108/manifest.json
observed c8ada8d9bce87c4ff5e6ba920368a1ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.514145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091108/publication.md
observed 3e974eb42c5a3e51f794b2740bb69c9b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.497011ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091108/publication.txt
observed 403aa363b8c439c0d423e634a7c729bc...
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.