OpenTechnical

OT-2026-000014015

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, 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-2026-000014015) never changes.

Identity and time

Publication numberOT-2026-000014015 · never reused
Internal UUID01a0ae6d-8deb-748e-9a32-ad47196f2de7 · 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-2026-000014015
StatusPUBLIC

Content hashes

Canonical textb49cec66d7117f24f13233b93e632ecfefd85aef9a24c777b6feb3c1eaa55f7d
Markdown58e359065a58a9fa58f475488ae7ec5658b80cc86ef87283b1dcd807934deb96
PDF
Publication pagea0ae4696622eaa4179456dcc0d8245ac829bbe4e8e2260104f7742141d44ffab
Manifest24b543460791106fbc289a8298a16df46bd99d6ccbd06f2659f5cc620838c717

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
SignaturekBy3eEHabJmXFMFSOI8RfhGU/K2z6sB8BQ1YMxL5JPfg9vC4kDTV/Q+5Guq5oABLYdNuPDFmTVD1spZNaan/Bw==
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

2026-09-17T12:09:14.426269ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014015
observed a0ae4696622eaa4179456dcc0d8245ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:14.407319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014015/manifest.json
observed 24b543460791106fbc289a8298a16df4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:14.388122ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014015/publication.md
observed 58e359065a58a9fa58f475488ae7ec56...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:14.367432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014015/publication.txt
observed b49cec66d7117f24f13233b93e632ecf...
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.