OpenTechnical

OT-2026-000028974

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold 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-2026-000028974) never changes.

Identity and time

Publication numberOT-2026-000028974 · never reused
Internal UUID01a0ae73-2a9e-7a44-a20c-e34bd46681cb · 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-2026-000028974
StatusPUBLIC

Content hashes

Canonical texte606f53222889830f1f553ad5ce4ad3448bb48be859aed11b7204992d0885a28
Markdown29aa5da869ed234b8dd8032faf4000c63fd60a798476c7a8961a8b2c48518e72
PDF
Publication page99b5170d61557f2ebf06c22560fd6a91b7907156ca57593fbeb48cd88cc35f11
Manifest578be0b338f322f5e7f0aac52a975b5a18521dd89ccbe60fe73028ca395b3d3b

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
SignaturexfBO/By/5jwGdVErx+lBi/7TGwAQzZH3NgHApXzCg8d/GlnovB63W6LvpMsDQPHD+fsAaLKPr0cDChSIkqG3Dg==
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

2026-09-17T08:20:29.443700ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028974
observed 99b5170d61557f2ebf06c22560fd6a91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:29.426011ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028974/manifest.json
observed 578be0b338f322f5e7f0aac52a975b5a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:29.281210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028974/publication.md
observed 29aa5da869ed234b8dd8032faf4000c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:29.263596ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028974/publication.txt
observed e606f53222889830f1f553ad5ce4ad34...
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.