OpenTechnical

OT-2026-000091155

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump 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-2026-000091155) never changes.

Identity and time

Publication numberOT-2026-000091155 · never reused
Internal UUID01a0ae9c-f16b-7c68-95bb-84467d4387a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091155
StatusPUBLIC

Content hashes

Canonical text59be613ff86bb0b07d60b1dfcac08c35de9fa8f8d74c40311735ccfbd9913ebf
Markdown5f537862b0cf31a1a1f50fdcc7ef12ce5c497ae63493dec2cc209fa7182ecd95
PDF
Publication pagefbc8be2dfd92cf2998cff3d78b8c236343bfdab2ff2f28939ffc3bd3f9820725
Manifest2ddb4f36c0dca49dc94c7886ba906706ffa674cb246e0bf25f6b54768d57906e

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
SignaturemCy7xWxqlFKcY2SuM60KiSTSfqhfnxvNIp7F4ANbCpYwM25Vfow/BjMlBHknv6EdMD3JuDKkEIop2ucqQDNPDA==
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

2026-09-17T09:43:18.514712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091155
observed fbc8be2dfd92cf2998cff3d78b8c2363...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.498024ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091155/manifest.json
observed 2ddb4f36c0dca49dc94c7886ba906706...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.481330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091155/publication.md
observed 5f537862b0cf31a1a1f50fdcc7ef12ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.464918ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091155/publication.txt
observed 59be613ff86bb0b07d60b1dfcac08c35...
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.