OpenTechnical

OT-2026-000019755

Publication integrity record

Three bellows cup vacuum gripper, three zone face, 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-2026-000019755) never changes.

Identity and time

Publication numberOT-2026-000019755 · never reused
Internal UUID01a0ae6f-1fb4-7686-a499-4ca7856feda4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019755
StatusPUBLIC

Content hashes

Canonical textc25cbbb468cd9c7a6f8d1e78ba9c033374cc42bc319655ee7e33f9cb2a2be094
Markdown486f6a31213843e1d320f998dbbcecb88d4f84cf13d48339629836af0c1bf3cc
PDF
Publication page610bf9cd669988a029d0bdcd3b2b92b5820e09a116fc43aaeb35895174642408
Manifest4c2cca6522eab0580bf7aef2bf90d5a8eb5016bc0f65f7911450071d010eb369

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
SignatureAqnEGDx6THPbn/93ho9+qpFl99ObwVrbfU0bw7IXMuWpn4jZefYiyVMacjJ12v7mfUL9Q714Bmzx9v/TiaZ9Dw==
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

2026-09-17T11:57:51.170011ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019755
observed 610bf9cd669988a029d0bdcd3b2b92b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:51.151265ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019755/manifest.json
observed 4c2cca6522eab0580bf7aef2bf90d5a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:51.132463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019755/publication.md
observed 486f6a31213843e1d320f998dbbcecb8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:51.114559ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019755/publication.txt
observed c25cbbb468cd9c7a6f8d1e78ba9c0333...
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.