OpenTechnical

OT-2026-000045699

Publication integrity record

Three cup vacuum gripper, three zone face, pump fed, pressure sensor per zone, 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-2026-000045699) never changes.

Identity and time

Publication numberOT-2026-000045699 · never reused
Internal UUID01a0ae7d-8f04-7386-81ae-cbec9a73c713 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:30:59.492045Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000045699
StatusPUBLIC

Content hashes

Canonical text3ebf89854ca9322074ad2a9516e255a9f86f2dba820fccbf4d87449c72c2a4b1
Markdownf1158efd88f7fb806969b246444bcf868cd14c74de66ce458a42351bc1a86fe2
PDF
Publication pagec6d3a7bb88999b0ba8b34b4e131a907f3bbed1e6efdbf6674bd81062af1a7164
Manifestcc8b6177acb62f16c6161a0621bf967dc027803fea785c0e77ec2adf8e71eb0a

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
Signature0kWJVF0MQaADH4PSqcFAS6EzrBdSdpgBW7+Q1yj5E5a+S+Sf57u5uQWzGY2Q95T36w/05BBZc0yUQjwGY+PYAw==
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

2026-09-17T11:09:30.318900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045699
observed c6d3a7bb88999b0ba8b34b4e131a907f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:30.300009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045699/manifest.json
observed cc8b6177acb62f16c6161a0621bf967d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:30.280477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045699/publication.md
observed f1158efd88f7fb806969b246444bcf86...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:30.261225ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045699/publication.txt
observed 3ebf89854ca9322074ad2a9516e255a9...
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.