OpenTechnical

OT-2026-000013907

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, three stage ejector, 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-2026-000013907) never changes.

Identity and time

Publication numberOT-2026-000013907 · never reused
Internal UUID01a0ae6d-8dea-7b68-a6e7-2886dd946d8f · 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-2026-000013907
StatusPUBLIC

Content hashes

Canonical textb944e3fa370de1428ef805d0f86b496be4631497c7e337111026a324d12109cc
Markdown2ea7c0077a30a7d80551ae19f440203d6f9bef4e9a15fb6a9785254fd8674d7f
PDF
Publication pagea32b4213716d87d9ac9bdde3a915338a7f7435f35b4a955db6ebd3906f9fea39
Manifestccafd1e42679f511e56b3494f308aa221d1da0dbba0c6e20676f2560edbf6b9a

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
Signature4CMSy33CGaHzfX0tr3iMBvRJ+sND7mM2nn58tPDNdTAL1LaLkfXtC7WBtHGJnmwfKy1f55lnup9Vv9I1dFZnBw==
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

2026-09-17T12:09:02.140839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013907
observed a32b4213716d87d9ac9bdde3a915338a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:02.119880ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013907/manifest.json
observed ccafd1e42679f511e56b3494f308aa22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:02.101404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013907/publication.md
observed 2ea7c0077a30a7d80551ae19f440203d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:02.081525ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013907/publication.txt
observed b944e3fa370de1428ef805d0f86b496b...
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.