OpenTechnical

OT-2026-000019007

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, pump 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-2026-000019007) never changes.

Identity and time

Publication numberOT-2026-000019007 · never reused
Internal UUID01a0ae6e-d523-764e-9aba-ec910f81d2d8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019007
StatusPUBLIC

Content hashes

Canonical text58b1e1fd297af57a43450d652bc3ad15de7aa4e658c40b44a10bb329d8c349f2
Markdowndefd106d96e8c63c3d3ecc7b63bb37588146cf053fde1c26779d7ffb89486105
PDF
Publication pageff7b0a1f1d7ed4b3d581f291608bd1e3735a45d118e947f0b04b10c8e3437448
Manifestf2f080d973c2e77cec9b45a91af60ec1577d51ae82655cbbfe606c83a08f5b27

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
Signaturezb3S/WkokIuOtAmGau/RBqPvVxJ7yf0SNCynlISDWvpm+Mjt+kOCv2A2f3d5upO0BTwqy4FBOhXTXqXW7V/9DA==
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

2026-09-17T11:59:41.488537ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019007
observed ff7b0a1f1d7ed4b3d581f291608bd1e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:41.468996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019007/manifest.json
observed f2f080d973c2e77cec9b45a91af60ec1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:41.451766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019007/publication.md
observed defd106d96e8c63c3d3ecc7b63bb3758...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:41.432096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019007/publication.txt
observed 58b1e1fd297af57a43450d652bc3ad15...
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.