OpenTechnical

OT-2026-000090934

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000090934) never changes.

Identity and time

Publication numberOT-2026-000090934 · never reused
Internal UUID01a0ae9c-c011-70f5-a4fc-fdecd1e3584a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090934
StatusPUBLIC

Content hashes

Canonical text868501064e9d5183308f0bc21c0988f07f1710d7a9c22596c9a44a7392c55385
Markdown6e77b81eca42a963dbf28850b8b6c802d7375cdbdb96a6bed1a5ca70d5b3b5c5
PDF
Publication page7d2b5a67c2ddfb913d5ad3c3216611cae7769223f8f0e63faa8a43b900fc1703
Manifest7f1ef22dde2d5ac510a5fc0fb8b1fceea22d1ede012a6c40cfb98e61653000ad

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
Signature8gptjYZK8C11/Mfv3wTILGTLZBthjGUqSp2uZbRhKjNSRRBTkiofYuST4brDmqaz0xN/erWZ1q1/QDUFtnteCw==
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

2026-09-17T09:44:09.298453ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090934
observed 7d2b5a67c2ddfb913d5ad3c3216611ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:09.279073ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090934/manifest.json
observed 7f1ef22dde2d5ac510a5fc0fb8b1fcee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:09.262604ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090934/publication.md
observed 6e77b81eca42a963dbf28850b8b6c802...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:09.243781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090934/publication.txt
observed 868501064e9d5183308f0bc21c0988f0...
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.