OpenTechnical

OT-2026-000071291

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, plant vacuum 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-2026-000071291) never changes.

Identity and time

Publication numberOT-2026-000071291 · never reused
Internal UUID01a0ae91-e0ec-76a9-9361-611a348cca89 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071291
StatusPUBLIC

Content hashes

Canonical texta4eab6c3009f4ce95d45b5845518abd0f5be92af958ba60dcf10f74202d4ee9c
Markdown160c805316e860787270512e9dbd0cd335a6b63f3eddaec9902ee72b19668b01
PDF
Publication page0d48ac0270644765c1cda31ad6d18a81f0877923ac6ecd1f0691cadded8d8a30
Manifestedc4b128237b1a3b8de4e9693e7ecbe41e773a7c9e161ce868d9370885a67b05

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
SignatureojOulJecEpl4drOFDzfj8Kxq7D3lro64MfKUiSjzvxuXL/T7TCASu0U7f0skVuIjOC5AdsJsoS9Zh9k5QzL/Dg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:24:51.272172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071291
observed 0d48ac0270644765c1cda31ad6d18a81...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:51.253089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071291/manifest.json
observed edc4b128237b1a3b8de4e9693e7ecbe4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:51.235442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071291/publication.md
observed 160c805316e860787270512e9dbd0cd3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:51.216227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071291/publication.txt
observed a4eab6c3009f4ce95d45b5845518abd0...
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.