OpenTechnical

OT-2026-000031403

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, two stage ejector, 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-2026-000031403) never changes.

Identity and time

Publication numberOT-2026-000031403 · never reused
Internal UUID01a0ae74-87ad-7258-8954-06fac4092a19 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031403
StatusPUBLIC

Content hashes

Canonical text29152f43e8b136758d284e42bd8fbd2e25d678a50f1d65ebd7a7684ff9383932
Markdown496ba2f123c3067d545d4b9c75fef2e0b1191efa60ef739df6b153398bd8d3ba
PDF
Publication page8bc2e208f29bcd0fb5be6e73a2b3745488810f341f7be02455ac8e3549b746d8
Manifest1a4cd845d8474298a479bd74572b58a6e7abb2730b1269a5157bb5585aae1580

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
SignatureJacVC1of6OlbMDh9EtJbctP8xdekuaANb/vMotlnTi3S0oyzlbBI44bySA2K5CL+ycO99WXma736Wgh5N5PcBw==
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

2026-09-17T11:36:07.003211ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031403
observed 8bc2e208f29bcd0fb5be6e73a2b37454...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:06.985361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031403/manifest.json
observed 1a4cd845d8474298a479bd74572b58a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:06.965019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031403/publication.md
observed 496ba2f123c3067d545d4b9c75fef2e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:06.947061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031403/publication.txt
observed 29152f43e8b136758d284e42bd8fbd2e...
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.