OpenTechnical

OT-2026-000088031

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, pump 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-2026-000088031) never changes.

Identity and time

Publication numberOT-2026-000088031 · never reused
Internal UUID01a0ae9b-1aa7-72eb-bb70-f26e62cb5fc6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000088031
StatusPUBLIC

Content hashes

Canonical text8e67dc965abdd7c46ed4c4d55b47bc24c8a44d04d965b525e4e8851fcb793700
Markdownf2712d26c77129564d53a6cd9bb793788a3db21442166ff43312a9ac9860ce6c
PDF
Publication page657d998567bdc6c2ba42dbaecc7bb405ebcec3a7e13a9daf58aabae7e151743b
Manifestf579175c93ebad101c489071afb32f06b0349cbf4fa2216a8a0faaaad150bebd

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
SignatureOdNc2Pd81KPnRcVOuK13T6fS1ASixZCOe0xlZsGPS/qt0ByyIRlH3aMEtuyP3gHCqHTy+75gpZ5tXnAM53jrBg==
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

2026-09-17T09:49:25.135690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088031
observed 657d998567bdc6c2ba42dbaecc7bb405...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:25.117739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088031/manifest.json
observed f579175c93ebad101c489071afb32f06...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:25.081849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088031/publication.md
observed f2712d26c77129564d53a6cd9bb79378...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:25.045429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088031/publication.txt
observed 8e67dc965abdd7c46ed4c4d55b47bc24...
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.