OpenTechnical

OT-2026-000029724

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, sustained blow-off before set-down

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-2026-000029724) never changes.

Identity and time

Publication numberOT-2026-000029724 · never reused
Internal UUID01a0ae73-5e23-732e-8c55-306fcd246fcc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029724
StatusPUBLIC

Content hashes

Canonical text8a3d0df9a2f88038348de95f5c2c394b57047f2e942eb0da95981d398ba9b029
Markdownf532cae749b0654fda411faecc8a361db068fbf9280f1ec41607255003e24b54
PDF
Publication pageb1100ce9ddff4214e8b2febeaf6ef7d0da19839d9de3ccfe1872d409c0785d47
Manifest4191d2040b41260346ea5f9f6dbfb49835200a9ea25e8977db3d7d7ba52696dc

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
SignatureKIZjw42njM3rJGeENJyjS+WbX6xtI/Iz7jwaiGZRKpu44RmHawY/+2N06+3CdzCz8nnHXGZVGjnEYXDVWfCPBQ==
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

2026-09-17T11:39:08.760724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029724
observed b1100ce9ddff4214e8b2febeaf6ef7d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:08.744444ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029724/manifest.json
observed 4191d2040b41260346ea5f9f6dbfb498...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:08.721501ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029724/publication.md
observed f532cae749b0654fda411faecc8a361d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:08.697276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029724/publication.txt
observed 8a3d0df9a2f88038348de95f5c2c394b...
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.