OpenTechnical

OT-2026-000005817

Publication integrity record

Porous face vacuum gripper, three zone face, three outlet manifold, pump fed, contact triggered

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-2026-000005817) never changes.

Identity and time

Publication numberOT-2026-000005817 · never reused
Internal UUID01a0a945-d8d8-7c11-a7cf-80d1d0a123fb · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:12:02.139101Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005817
StatusPUBLIC

Content hashes

Canonical texta52e813b4cf4c4bf8106ab15362cf16472fd243177b234804117da46da43f28a
Markdown3778689db6745343dfb67354da9e390fcc525277d0db46d8e09b0a1bbef0ce95
PDF
Publication page688032cc8fad1e960b83dfd31cb96b6b39362d1fbd5f599a8774af980e2d5658
Manifest18c9d17657271273de10109ed0c0be31a56124c0dee15ea063276013c99d0db3

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
SignaturegRy0m9j0XJ5n5yZABlnFeXuWoA1viasnMoQjTwQySKIN7t7Gaub655n701KkWdVJyggkQlbB9Rni8nHPbtTGCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:29.411528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005817
observed 688032cc8fad1e960b83dfd31cb96b6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:29.396773ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005817/manifest.json
observed 18c9d17657271273de10109ed0c0be31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:29.380807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005817/publication.md
observed 3778689db6745343dfb67354da9e390f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:29.241200ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005817/publication.txt
observed a52e813b4cf4c4bf8106ab15362cf164...
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.