OpenTechnical

OT-2026-000019473

Publication integrity record

Single cup vacuum gripper, 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-2026-000019473) never changes.

Identity and time

Publication numberOT-2026-000019473 · never reused
Internal UUID01a0ae6e-f393-73fc-b21e-abb94bd9700c · 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-2026-000019473
StatusPUBLIC

Content hashes

Canonical text4a6b95314d9b6dfa22c6fde969eaab247dd18626788f7113019d82c2aa3ce0ae
Markdowna3a6a650625cedebf7e90c3b4452eeff4c6dd2a79e9509a0a5801f83c87c35df
PDF
Publication page4e4df1ecb438dcca1b87cb20240b1021cb8d5db0f6a12287e2aca21f957b20c9
Manifest24b12ee5ea2e28535c5c2f1ba769f68011d2f43576f5a6cb1be841fc49c40ebb

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
Signature6J5DWjFKIKld4OhPxzcWmpQSEEDPzooyTwRrwTSNJJWscCYA0dCbc2n2U1dUIdrY2l8+R/VTHyLbSLSGohaCCA==
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

2026-09-17T11:58:53.417152ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019473
observed 4e4df1ecb438dcca1b87cb20240b1021...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:53.394820ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019473/manifest.json
observed 24b12ee5ea2e28535c5c2f1ba769f680...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:53.370573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019473/publication.md
observed a3a6a650625cedebf7e90c3b4452eeff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:53.348643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019473/publication.txt
observed 4a6b95314d9b6dfa22c6fde969eaab24...
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.