OpenTechnical

OT-2026-000067439

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000067439) never changes.

Identity and time

Publication numberOT-2026-000067439 · never reused
Internal UUID01a0ae8f-6bd9-77ff-9364-fb8f97404117 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067439
StatusPUBLIC

Content hashes

Canonical textb92ebb2f06e789f6cf9f484796b0884ad07a30c8fdac85af6d6f23b9652546bc
Markdown1b91daed444da600fafe354e184ccc8a7041ec2d0545e909e858eab4185b53c6
PDF
Publication pagecfe5646f2ffa06ab0c9a2aead73006b56befb764645647e8ef79287dd8ae1450
Manifest6295b1bf25b297e62b230a3ab40c563ed66693f55c1fba68d5b2487459866269

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
SignatureNqnPsDCsk05R/DXVW8qbDWamzSj3x+IkzxLWY1UcBAeesTip6oNigsl14cKOu86XgDDECCP9HKfUcAvBg+9WBQ==
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

2026-09-17T10:31:38.516019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067439
observed cfe5646f2ffa06ab0c9a2aead73006b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:38.499766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067439/manifest.json
observed 6295b1bf25b297e62b230a3ab40c563e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:38.482971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067439/publication.md
observed 1b91daed444da600fafe354e184ccc8a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:38.464987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067439/publication.txt
observed b92ebb2f06e789f6cf9f484796b0884a...
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.