OpenTechnical

OT-2026-000018425

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000018425) never changes.

Identity and time

Publication numberOT-2026-000018425 · never reused
Internal UUID01a0ae6e-b489-7548-926c-42d32d03a3e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018425
StatusPUBLIC

Content hashes

Canonical text837b442b4407e0ccbb472d8e4b417c04cf3e605b711a0ef8f49ab91dd43918c0
Markdownb9093d4c92ec71b03f41e330893305c91be45efa3f828f040c5330fb3481a1f8
PDF
Publication pagedb1cf15504f61fef4a422f6fc439f596bf92c8a658ea83dd0ebe0a8e69725910
Manifest6636723e52975af466226b74054bde34a83e777230972fddaeb0197da6f3266a

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
Signature21r3es7pT3g86lDBJ8ABjsoWy987RHg2xPPCirG84FvtWTMbwFAhy1Qh0snLd6vdSoZPHo8W9x9UkmaYziGgDA==
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

2026-09-17T12:01:10.457617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018425
observed db1cf15504f61fef4a422f6fc439f596...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:10.438560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018425/manifest.json
observed 6636723e52975af466226b74054bde34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:10.417776ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018425/publication.md
observed b9093d4c92ec71b03f41e330893305c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:10.399342ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018425/publication.txt
observed 837b442b4407e0ccbb472d8e4b417c04...
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.