OpenTechnical

OT-2026-000011590

Publication integrity record

Single cup vacuum gripper, single stage ejector, vented after 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-2026-000011590) never changes.

Identity and time

Publication numberOT-2026-000011590 · never reused
Internal UUID01a0ae6c-8900-7fc8-babf-36bd44dbbe39 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:12:23.703080Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011590
StatusPUBLIC

Content hashes

Canonical text6d3786d0c02ba0bb214208194a4b82a1a2396e3b8014185fa88e27e41f83ee74
Markdown4283b48774275880e500cf3aff0440330ff8cde608e6e0f4b5ec2922249f3e79
PDF
Publication page18bef05bafc834d3f2faecc6834db7baca7612761b020ad4dcba97350b32cf78
Manifest3294ec176bf8858f4c1b2d35edffc4041a67e6c9a171a52ec12f3af0f832ce70

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
SignatureeDFvdfSbA/BKe46cfpOeMFH7uv5+4RWMQbsA1TA+sEiuUkN8y7bZrWIP2dc7xl1YbsWoIST7NGpzQME/g/RcDA==
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

2026-09-17T12:13:01.343515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011590
observed 18bef05bafc834d3f2faecc6834db7ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:01.324603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011590/manifest.json
observed 3294ec176bf8858f4c1b2d35edffc404...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:01.306161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011590/publication.md
observed 4283b48774275880e500cf3aff044033...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:01.286934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011590/publication.txt
observed 6d3786d0c02ba0bb214208194a4b82a1...
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.