OpenTechnical

OT-2026-000013979

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, plant vacuum 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-2026-000013979) never changes.

Identity and time

Publication numberOT-2026-000013979 · never reused
Internal UUID01a0ae6d-8dea-7798-9e7e-84f75b8032c8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013979
StatusPUBLIC

Content hashes

Canonical texta8ccda40f58c5a3065c14a9c244251ca69d1d93df0fac02ccc448c43c31c37cc
Markdownbea5bdd6f42bf67d097148a5081d25969c796869e2d4107aef69b39834813b27
PDF
Publication page054b5a18e57d31f886beddcf5ba2c189eb6ec006c8522516559e21d6970d9743
Manifeste7df568a0e16a00635a2ec49aacc7ac857441cc24205e8d03703c502cf636f45

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
SignatureI6fFL2HTm+x84Tvokz+WYIYVHPUJgcaXMIoMFEWjLZ3IXkES6c0js7iC8fdgiAtdXF09CD+BhUWZsxmn+utWDA==
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

2026-09-17T12:09:11.555564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013979
observed 054b5a18e57d31f886beddcf5ba2c189...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:11.534724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013979/manifest.json
observed e7df568a0e16a00635a2ec49aacc7ac8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:11.512372ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013979/publication.md
observed bea5bdd6f42bf67d097148a5081d2596...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:11.488587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013979/publication.txt
observed a8ccda40f58c5a3065c14a9c244251ca...
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.