OpenTechnical

OT-2026-000006520

Publication integrity record

Vacuum cup gripper, two stage ejector, contact triggered on the face

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-2026-000006520) never changes.

Identity and time

Publication numberOT-2026-000006520 · never reused
Internal UUID01a0a95e-1710-775d-887c-5066471d166c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:38:30.931181Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006520
StatusPUBLIC

Content hashes

Canonical text1828ec8c79dc1200c4c8dc0fd184f6962a959c78596df88277e397c5cd5dac72
Markdownf3a00c9a48bfa974c3138248a8a86d17c48b34350a453993fded5a1f63ccc225
PDF
Publication page064e9fc0d38a985a4fa28b3c22c19d62421131bc06dd41f0a9f95fb5a82fdda6
Manifestc1809df3113dc9fe4520a5836af4236e560c92166e0896ca51036ff4466170e0

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
SignatureTqcpfznP1BJf3WgZSWk+Hgd4ei7AOHMvx3RksMickW1i950xjYtQAk/sh/YQ8AzWMxZEQn0PBldClwODU6qTCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:07.889734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006520
observed 064e9fc0d38a985a4fa28b3c22c19d62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:07.874498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006520/manifest.json
observed c1809df3113dc9fe4520a5836af4236e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:07.734375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006520/publication.md
observed f3a00c9a48bfa974c3138248a8a86d17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:07.719579ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006520/publication.txt
observed 1828ec8c79dc1200c4c8dc0fd184f696...
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.