OpenTechnical

OT-2026-000025191

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, pulsed 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-2026-000025191) never changes.

Identity and time

Publication numberOT-2026-000025191 · never reused
Internal UUID01a0ae71-5fa6-7759-8763-1a6d7fcb525e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025191
StatusPUBLIC

Content hashes

Canonical text839876bf3aceb7525ff0db898110fe8c43e58a3d2838c24f7cbecedff73bf464
Markdown8da035ef90218ee272dae4523c2a0d7e4e14ca6b133e79e53405ad15225e25f3
PDF
Publication page248f9c09ae789801bf40a1ec1bca7edd989b3b966ed2564978c5c0927aa7926a
Manifest7a02807f0303b5a1ddd2dd5c0a85549cd092cefba673675094516c2be106ffdc

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
SignaturearEi8CY7x4Q1+3dauc70fQ3/TQFW53QmYP8zKjRGs7suHZ/NKHlHAGHlYnNlGd8GO/5Lk0UWNdwKMF94Yu+aDA==
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

2026-09-17T11:47:10.675548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025191
observed 248f9c09ae789801bf40a1ec1bca7edd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:10.656324ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025191/manifest.json
observed 7a02807f0303b5a1ddd2dd5c0a85549c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:10.637435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025191/publication.md
observed 8da035ef90218ee272dae4523c2a0d7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:10.619880ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025191/publication.txt
observed 839876bf3aceb7525ff0db898110fe8c...
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.