OpenTechnical

OT-2026-000005819

Publication integrity record

Vacuum cup gripper, plant vacuum fed, pressure verified at each zone, contact triggered

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-2026-000005819) never changes.

Identity and time

Publication numberOT-2026-000005819 · never reused
Internal UUID01a0a945-e8e7-7e0d-ae02-8f3fb675cca5 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:12:06.250713Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005819
StatusPUBLIC

Content hashes

Canonical texta5017851f5db7346c93879a86b908bddd50b457d3d1ff15462267b2f789b8c99
Markdown2019837b96ddbd9c19ee94e2c0d7dd78a2b2046edf40c2f8938316d93db07535
PDF
Publication page9ce6c5bb2f559a1df6b5189356b7a97ec4c026d14803811807eafd0413e0015c
Manifeste5911594e1d3d65cd33d6c3da49ba7dec6ea4064bbb3064fdb9fb5e95a93b50c

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
Signature5r9/EkkTmARIuedCmGIU9SXtuoCT7v48o/qatEM4Il1QfyAY/pL7pyFnjy3N1qZXwadBppQ3d4ID3MUtFWNbDA==
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

2026-09-16T08:20:29.161528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005819
observed 9ce6c5bb2f559a1df6b5189356b7a97e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:29.147899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005819/manifest.json
observed e5911594e1d3d65cd33d6c3da49ba7de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:29.133536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005819/publication.md
observed 2019837b96ddbd9c19ee94e2c0d7dd78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:28.993623ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005819/publication.txt
observed a5017851f5db7346c93879a86b908bdd...
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.