OpenTechnical

OT-2026-000081922

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented after 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-2026-000081922) never changes.

Identity and time

Publication numberOT-2026-000081922 · never reused
Internal UUID01a0ae97-0f76-720a-acdd-9393d498df00 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081922
StatusPUBLIC

Content hashes

Canonical textc58bf484b5b0ff83098744742f29dead649e8081a983f9884be8ed7d11943991
Markdown90b20d9490e09f535fc038fd65995e7d25d108b5a90a9be03aed23a5e4765323
PDF
Publication page28698aab5a3665ac66692277c36032a628d5ad044421f6f33e73dc342d119838
Manifeste025f1c10a86228a9193e47be6c74a08507e266d4cf1c9b908693db2aebf33a0

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
Signature5Wk8bKlIlKBNp/P0x43ucGh/JD3Pcl8FOeZw/eqDZGAp3m3uMXoD/wr/JEq5ajTcbUXFpi+tb0woDrriAWdgCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:01:03.086933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081922
observed 28698aab5a3665ac66692277c36032a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.065864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081922/manifest.json
observed e025f1c10a86228a9193e47be6c74a08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.048952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081922/publication.md
observed 90b20d9490e09f535fc038fd65995e7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.029656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081922/publication.txt
observed c58bf484b5b0ff83098744742f29dead...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent