OpenTechnical

OT-2026-000031442

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, plant vacuum fed, pulsed blow-off after 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-2026-000031442) never changes.

Identity and time

Publication numberOT-2026-000031442 · never reused
Internal UUID01a0ae74-87ad-7e86-8729-a211938c2241 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031442
StatusPUBLIC

Content hashes

Canonical text0ae07274572cceaaa2f9b12ac5b7ef613a6d74d2a1a1e9ca6f02f0c2c6989e2b
Markdowna62aacc1e400d29c14be3eeb8782108575cba9f791b6c79bf10bc0785d817922
PDF
Publication paged3b1e8280f470a9a04881a7ffacb26e1a73d85c95395fd713b47e50dcb48156d
Manifest314a912788cf982967007d00200a75acd5811be647849bb8933eff6d3baeab46

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
SignatureYF+fTxDuYxZu4u3wOXZm4+2kBg9wFUI4QYMagCLxLf50mjXnuKJ/ONllTx0dr6o6xpqdD68S3IHbGFg7n07GDg==
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

2026-09-17T11:36:09.943065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031442
observed d3b1e8280f470a9a04881a7ffacb26e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:09.920820ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031442/manifest.json
observed 314a912788cf982967007d00200a75ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:09.902177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031442/publication.md
observed a62aacc1e400d29c14be3eeb87821085...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:09.883008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031442/publication.txt
observed 0ae07274572cceaaa2f9b12ac5b7ef61...
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.