OpenTechnical

OT-2026-000071801

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off before set-down

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-2026-000071801) never changes.

Identity and time

Publication numberOT-2026-000071801 · never reused
Internal UUID01a0ae92-1e92-793a-838e-4ffc1a7be885 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071801
StatusPUBLIC

Content hashes

Canonical textff925b9e0998997cae9002e0f9c3bdcb3496c2a12f424e11a35f0f91b2bfea58
Markdown02d27c2e8e783df57cf11c6a7da7b9050e5be190fcea99e2ead4e7abfbf8a7f0
PDF
Publication page0565d714af7051ae4b1a33819bc90bb2a7496012f4a7a6730bfdb62a68010c6c
Manifestb38a5f8b8dca283682c80a673d3e290447fdc51052fb41b3aebdc4410165acd4

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
SignatureAQzJ/4zQNPnhA43oma+GJFxggS+Wyntxc591o3XKoFybPDCxorv0RszR/JIhRL+k3NL8HDtUd/s801NiaT9zBw==
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

2026-09-17T10:23:58.300232ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071801
observed 0565d714af7051ae4b1a33819bc90bb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:58.281711ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071801/manifest.json
observed b38a5f8b8dca283682c80a673d3e2904...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:58.264975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071801/publication.md
observed 02d27c2e8e783df57cf11c6a7da7b905...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:58.248786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071801/publication.txt
observed ff925b9e0998997cae9002e0f9c3bdcb...
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.