OpenTechnical

OT-2026-000019441

Publication integrity record

Single cup vacuum gripper, common isolation valve, single 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-2026-000019441) never changes.

Identity and time

Publication numberOT-2026-000019441 · never reused
Internal UUID01a0ae6e-f393-720e-bc29-8fb9c4957b12 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019441
StatusPUBLIC

Content hashes

Canonical text5e39253a7609c1066ef45f30a9a026d797b35e0161bb3d4ff4bb69e45d166432
Markdown3c4d85a3f11a72db676fc3373474d6eea9b841dff92f8f19ec5d039e9850451f
PDF
Publication page9bf2f430c405710f2b3484cc5746ff5bb1931458b3c22eb4afd4c0a5f8320ed4
Manifestb0020a329a643e04ce5889e3d13b54b5171da58196429ae76c7d9dae46c85c28

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
Signature6ZKnkWyD1ePtO8/b9Ckh5TDc9OZZLYW4CozSPGFqPc8t3O4Z0xZNm9AnCTD/hpCgmWXt6m8ffVZ24XOSOySvAA==
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

2026-09-17T11:58:50.316655ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019441
observed 9bf2f430c405710f2b3484cc5746ff5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:50.298961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019441/manifest.json
observed b0020a329a643e04ce5889e3d13b54b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:50.282505ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019441/publication.md
observed 3c4d85a3f11a72db676fc3373474d6ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:50.262262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019441/publication.txt
observed 5e39253a7609c1066ef45f30a9a026d7...
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.