OpenTechnical

OT-2026-000021204

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, 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-2026-000021204) never changes.

Identity and time

Publication numberOT-2026-000021204 · never reused
Internal UUID01a0ae6f-865b-7850-bede-55cbcf2ad5ea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021204
StatusPUBLIC

Content hashes

Canonical texta41f4cb97c0c99aa2f18c96993bd11452d33e7038b796069dddb2f4ea403488a
Markdown3e864fb3d09ed960f5158fe8c6b197431da76f50ad1f5b220082fbbed7296270
PDF
Publication page5cf3bf2bc7ecf4167175590da8831e5b121f11e832b964d09dfea4054a1b578f
Manifest05ecdb4c13548751fef222cfe5af6a8c4b0b7fd405dd79907be15071ce60f04b

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
SignatureTPakg2hSRbalmCRfPklGxoV94rriF/gA7THfX4yInutE3N3159+VI10aQdctmoibWB4ostS4HIx4NCiFstvtDA==
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

2026-09-17T11:55:00.071996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021204
observed 5cf3bf2bc7ecf4167175590da8831e5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:00.053382ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021204/manifest.json
observed 05ecdb4c13548751fef222cfe5af6a8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:00.036745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021204/publication.md
observed 3e864fb3d09ed960f5158fe8c6b19743...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:00.017095ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021204/publication.txt
observed a41f4cb97c0c99aa2f18c96993bd1145...
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.