OpenTechnical

OT-2026-000030089

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, manifold 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-2026-000030089) never changes.

Identity and time

Publication numberOT-2026-000030089 · never reused
Internal UUID01a0ae73-ac4a-7de4-9832-eb41d4c3e697 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030089
StatusPUBLIC

Content hashes

Canonical texteba5d6bd2746cb459985d6c830145dc2ed068247e662dfed95b9553e0625c2ce
Markdowndb7fbcd90a181171a0f036abfe376f492b950e55e9e66d9accb2b1713950d8b6
PDF
Publication page5deda1a6e296ee53c9eeaa7099c38f5e3df5771c418057062dd204d32bd217b9
Manifest3775d8418d1d8274796397e09c0f47ad85f6e1e92936e811a09ed07b220ffab7

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
SignatureNKfOQ+qRo+AWRBXpPMdRSmt6+RrVEFToULsb9mW42fgGq8qzac2Hbd5K314rcM4eIbOUSPZ9zc7JHNCWjbuxAQ==
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

2026-09-17T11:38:50.304365ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030089
observed 5deda1a6e296ee53c9eeaa7099c38f5e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:50.288491ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030089/manifest.json
observed 3775d8418d1d8274796397e09c0f47ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:50.271520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030089/publication.md
observed db7fbcd90a181171a0f036abfe376f49...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:50.254386ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030089/publication.txt
observed eba5d6bd2746cb459985d6c830145dc2...
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.