OpenTechnical

OT-2026-000075422

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold pressure sensor, vented 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-2026-000075422) never changes.

Identity and time

Publication numberOT-2026-000075422 · never reused
Internal UUID01a0ae93-f201-7fa3-b8ef-284ac8f5f7a2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:26.476108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075422
StatusPUBLIC

Content hashes

Canonical textd5ac4d7322529a0657dbdfce12d5d8e4d41ce938b582d80ee6ef11732e659ecf
Markdownb6d9c3e71b5fd7727335ddf1dc727a2ce6e2af250b17735b4eb50eb9a24625bd
PDF
Publication page15db72e152fcd159e0932065738faa39cda2309be73bb6cdccb6e84d941f315c
Manifest9296e26284178bce632d8137717e2436b8cd50d5f02ce1b36c5d048d921c500f

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
SignaturenH76qK8t6FvbvQ5uweUvmJlxnzl7lk0yvQaSZVJTkBaj4O3tG6aJFA+DvyN/C+s3kPzbPUTxRp2CvabAlGDzDA==
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

2026-09-17T10:17:34.992926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075422
observed 15db72e152fcd159e0932065738faa39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:34.975946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075422/manifest.json
observed 9296e26284178bce632d8137717e2436...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:34.955054ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075422/publication.md
observed b6d9c3e71b5fd7727335ddf1dc727a2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:34.815566ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075422/publication.txt
observed d5ac4d7322529a0657dbdfce12d5d8e4...
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.