OpenTechnical

OT-2026-000018243

Publication integrity record

Two cup vacuum gripper, two zone face, six outlet manifold, pump fed, 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-2026-000018243) never changes.

Identity and time

Publication numberOT-2026-000018243 · never reused
Internal UUID01a0ae6e-b488-7c44-b424-d7d530f1f15b · 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-2026-000018243
StatusPUBLIC

Content hashes

Canonical text8d0f6c7163b23d53e06f5c25ab35e389fbf4ba08232fff65dba4dd73e724aa0f
Markdown31998c439a3113235e7518cac27d7ee8abd2ca0ead3b00f73bec74fa63d71e5d
PDF
Publication page799aa40ee5db317ea689220c90a26e9f874f081e12a810b880d507fce0fbe9af
Manifestd84fbe2ad1e21ec56f3bd01e876ea378b9004fa9c5c57eba582ef11e54b97911

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
Signature0bADTFnuToz5wz1+W39OdMseOKZ+Re6q4EDWIRxPIbX4b7cjYtCE4GIR+3eyGo3gjfTfvZd2Os6M24ojbwCnBw==
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

2026-09-17T12:00:03.588475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018243
observed 799aa40ee5db317ea689220c90a26e9f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:03.569154ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018243/manifest.json
observed d84fbe2ad1e21ec56f3bd01e876ea378...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:03.551029ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018243/publication.md
observed 31998c439a3113235e7518cac27d7ee8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:03.531236ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018243/publication.txt
observed 8d0f6c7163b23d53e06f5c25ab35e389...
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.