OpenTechnical

OT-2026-000015267

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, 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-2026-000015267) never changes.

Identity and time

Publication numberOT-2026-000015267 · never reused
Internal UUID01a0ae6d-ef48-7592-bfcb-2fac5a4ac345 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015267
StatusPUBLIC

Content hashes

Canonical textd3df74fbc88b7e4b47e049f69378ceb352886768afcee8bbfe5d6d69e1be251d
Markdown45289a1db1f3d46d0ef1ddad645e2c2a77f16934dd904a2ec921748668f2985c
PDF
Publication page9034138613898f98a474593f2f25d0e8409b466368e5bf703b623fd204a7342e
Manifesta3ebd9e646a7425d2236ce7c5fab2af5f3747065de7f458146fbaf098a7919de

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
SignaturemnxEnM/XMh/xPPIh1aXGwFQxocOhmD5AJNS64R8IasyAsqIpgObqs6mOIscq88BCtVA8ueUXncqo/hPHW2v1Dg==
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

2026-09-17T12:05:56.620508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015267
observed 9034138613898f98a474593f2f25d0e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:56.599113ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015267/manifest.json
observed a3ebd9e646a7425d2236ce7c5fab2af5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:56.578875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015267/publication.md
observed 45289a1db1f3d46d0ef1ddad645e2c2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:56.559785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015267/publication.txt
observed d3df74fbc88b7e4b47e049f69378ceb3...
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.