OpenTechnical

OT-2026-000025604

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, manifold 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-2026-000025604) never changes.

Identity and time

Publication numberOT-2026-000025604 · never reused
Internal UUID01a0ae71-9bc9-77f9-8b8e-d59248a723b1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:56.183170Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025604
StatusPUBLIC

Content hashes

Canonical text731d5946ee42f64943a3c3078977a4d055278b4ef6bd2e1d1de90463d707926f
Markdownbb52e325e4c54e5f358c9d740428e54b5ff6251eb3541912b71151446dc27547
PDF
Publication pagea4253b6c76c34fe73a30f989c5d9c21400dcc301aa96fcef327b2e3dbd451cb0
Manifest1a00153d2927629c69aea501c71789b40069c86c3aca32671f38beef2082b5f8

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
SignatureBbJ2gu8jJg2xToT3J5tYuXE/36HIT35D7FAO32noeO4UauieW9eZ6cUnadk5AH7Nax/ZbXh7k9dr2mwmI73yCg==
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

2026-09-17T11:46:47.185307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025604
observed a4253b6c76c34fe73a30f989c5d9c214...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:47.167224ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025604/manifest.json
observed 1a00153d2927629c69aea501c71789b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:47.147565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025604/publication.md
observed bb52e325e4c54e5f358c9d740428e54b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:47.104530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025604/publication.txt
observed 731d5946ee42f64943a3c3078977a4d0...
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.