OpenTechnical

OT-2026-000088321

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000088321) never changes.

Identity and time

Publication numberOT-2026-000088321 · never reused
Internal UUID01a0ae9b-5d27-7a57-bd0d-35ee889d2089 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:32.662646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000088321
StatusPUBLIC

Content hashes

Canonical textf313a0079cb9c09ead3b791266f4e093a09b2cdad06fb231e398801b85ce087a
Markdown819ce46cf6321330a16ff2b29e3e17a186914230d66015788948f0e7b64d4556
PDF
Publication pagea611d6bc5f0572f8f1b2a915f6c5ff19b2bd717e9e37157b8b6a872064aeaeb5
Manifest0d5087e8b2ffea8c16915a9a81e48638e70f094be78f7e7fce1b1cb3ab8a750e

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
SignatureeDU03liSFl665btq6kIKAT3QYoP5SzPdoT+IHg8grcNq9fjPRwaIcMFFapdUFAPtAe+dBoWPiWoZfxv99QbIAw==
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

2026-09-17T09:48:36.925242ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088321
observed a611d6bc5f0572f8f1b2a915f6c5ff19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:48:36.909327ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088321/manifest.json
observed 0d5087e8b2ffea8c16915a9a81e48638...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:48:36.891643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088321/publication.md
observed 819ce46cf6321330a16ff2b29e3e17a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:48:36.874459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088321/publication.txt
observed f313a0079cb9c09ead3b791266f4e093...
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.