OpenTechnical

OT-2026-000005922

Publication integrity record

Porous face vacuum gripper, plant vacuum fed, pressure verified, contact triggered, 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-2026-000005922) never changes.

Identity and time

Publication numberOT-2026-000005922 · never reused
Internal UUID01a0a949-4ce4-7fa4-b404-2522a06b9c24 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:15:48.455077Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005922
StatusPUBLIC

Content hashes

Canonical texta0c852ac33121ec3158e57a7ce20398813d3c83e8a7d70835a78d2aee44a2883
Markdown96b6114b100d4dbdd81792684b2fb1523f0ccf4ff0ddf3c78d53cd2815a0e6c8
PDF
Publication page70e46f404df2c1ee7c80f3bcf8d0334e63dc8986eb39c268c2ff1e310b8d9e89
Manifestdc932856ab4f9f0a5ec8f890ea9baa1364c3605ee5c2009392c84a5b2add0461

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
SignaturemDtPWvsY/YiQL2aEMvkHPffEpF557Yc+oPowrCvB8QLwBduW4yyvbhh0U1fKxMqezMYEfm6lXh1Z8lfyKG2rDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:17.163475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005922
observed 70e46f404df2c1ee7c80f3bcf8d0334e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:17.148233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005922/manifest.json
observed dc932856ab4f9f0a5ec8f890ea9baa13...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:17.131177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005922/publication.md
observed 96b6114b100d4dbdd81792684b2fb152...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:17.003133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005922/publication.txt
observed a0c852ac33121ec3158e57a7ce203988...
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.