OpenTechnical

OT-2026-000031664

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, single stage ejector, supply line pressure sensor, sustained 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-2026-000031664) never changes.

Identity and time

Publication numberOT-2026-000031664 · never reused
Internal UUID01a0ae74-bad0-7b61-ae1c-94823d5c80e0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031664
StatusPUBLIC

Content hashes

Canonical text9e476d5d2ebf499378016bed7a3670a1be349a67166b5a1ca91616b32b90a16e
Markdown94ae27db197b96c7e5e4b0d485f063f3de0292a937bf738d825f0d64988c132b
PDF
Publication pagea86f80fcc40b5ee9c6ae1186e482f2b0c2f1719f9f5a32c7f89f70d971d3cbe9
Manifest0276b164f33cc4a7998e39cb1ba3b688d4e08f7c34e2160c96eabb21a334a4a7

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
SignatureXe359c4TGacSCaN1WMpuLmp1uBKDe52T2vaXtTI+QJc9lx8w6zLU4J8WjRbqUToSbQHHG8lhThqQo1sREd9xCA==
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

2026-09-17T11:34:45.586436ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031664
observed a86f80fcc40b5ee9c6ae1186e482f2b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:45.567200ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031664/manifest.json
observed 0276b164f33cc4a7998e39cb1ba3b688...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:45.548812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031664/publication.md
observed 94ae27db197b96c7e5e4b0d485f063f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:45.528645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031664/publication.txt
observed 9e476d5d2ebf499378016bed7a3670a1...
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