OpenTechnical

OT-2026-000015157

Publication integrity record

Single cup vacuum gripper, pump fed, 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-2026-000015157) never changes.

Identity and time

Publication numberOT-2026-000015157 · never reused
Internal UUID01a0ae6d-ef47-7d2c-a2b1-4a8a74a3a8bd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015157
StatusPUBLIC

Content hashes

Canonical text6cbcd800eada28c6a84314868070b53c3a172e8a33b98e27aedd761a94b24d30
Markdown8c804cd00f06d94128c02938d441dca907372d043d768088a927f64f6ba9ce7d
PDF
Publication page2382a597dc276ba23b6e148a5f8fe54ce1db751e84e3af94f3853da31dae5bea
Manifeste16564927598738010c50e9290cff01d89bfc5e477af9492655916b788ddb415

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
Signaturep88GXtNgGQmF3LNcqhsJozrFZVxXUWRrti/bkuYDJEjWw9Mi9lKI6j6o7wBV6GEigfpjv09fOdk9OGCb96VECw==
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

2026-09-17T12:05:46.105356ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015157
observed 2382a597dc276ba23b6e148a5f8fe54c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:46.086474ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015157/manifest.json
observed e16564927598738010c50e9290cff01d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:46.066150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015157/publication.md
observed 8c804cd00f06d94128c02938d441dca9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:46.046516ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015157/publication.txt
observed 6cbcd800eada28c6a84314868070b53c...
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.