OpenTechnical

OT-2026-000028910

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, two stage ejector, manifold pressure sensor, sustained blow-off before set-down, on a tool changer

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-2026-000028910) never changes.

Identity and time

Publication numberOT-2026-000028910 · never reused
Internal UUID01a0ae73-2a9d-7761-b7e8-f64dfdf462f7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028910
StatusPUBLIC

Content hashes

Canonical text583d97bc8e79cc0ab2708745b80bbb0bddfbae54cd6ba38e3e1194165f19472e
Markdown8fe450051cc0a8ac6d91fc534b71048b913131a0ae1ed300390524e99473a46a
PDF
Publication page5c1b93313bbdbc9243ef260d95cb22918454d03c933216ceee2e6eb82b6ebe42
Manifest85138af99469c2d2db5a85c59b9c3ed3cc06d175c365f0e77c0245cb60593970

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
SignaturejU884YHt+7RbH6JKdPo1nOMekmsTMXl4MK/kTycpdi3dLJ8ImCAy662iojsQ4G1ZI349OhMfQxaX/ZdvMTSXBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T08:20:18.775330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028910
observed 5c1b93313bbdbc9243ef260d95cb2291...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:18.759878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028910/manifest.json
observed 85138af99469c2d2db5a85c59b9c3ed3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:18.737744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028910/publication.md
observed 8fe450051cc0a8ac6d91fc534b71048b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:18.719190ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028910/publication.txt
observed 583d97bc8e79cc0ab2708745b80bbb0b...
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.