OpenTechnical

OT-2026-000049020

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, manifold pressure sensor, pulsed blow-off after 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-2026-000049020) never changes.

Identity and time

Publication numberOT-2026-000049020 · never reused
Internal UUID01a0ae81-134c-7d79-b02d-ea23578bbde4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:49.967260Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049020
StatusPUBLIC

Content hashes

Canonical text9526957ab20647c74ce7f9218ab357efafe9f55e0d872168f075b1e4e7266301
Markdown55049ea8e68694fd9ce89b907c9c78dd0ad874220a6e707644c03f7094fde86d
PDF
Publication page7dfe42c73acbb98774888a602d35c1c378f0f103961dcbfcf3ce9746ce3e6281
Manifest209d09d838ecbdacb856ee7c5c5a0295206cc798f45f62ad8d200db6afe43f4a

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
SignatureSlO4Ng/aAPA5zOahx2zrdlKvjJp1Ec7gbUmjSMMCh0ZcKg71Y+wjsAqOg02V4sPD7xoUK5cWCcL/xLCxw/c2Cg==
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

2026-09-17T11:03:14.248973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049020
observed 7dfe42c73acbb98774888a602d35c1c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:14.230049ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049020/manifest.json
observed 209d09d838ecbdacb856ee7c5c5a0295...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:14.212771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049020/publication.md
observed 55049ea8e68694fd9ce89b907c9c78dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:14.195435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049020/publication.txt
observed 9526957ab20647c74ce7f9218ab357ef...
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.