OpenTechnical

OT-2026-000006300

Publication integrity record

Vacuum cup gripper, four zone face, two stage ejector, pressure verified, rubber cups, flat form

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-2026-000006300) never changes.

Identity and time

Publication numberOT-2026-000006300 · never reused
Internal UUID01a0a956-1150-76af-b948-2124a5cd63ba · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:29:45.172037Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006300
StatusPUBLIC

Content hashes

Canonical texta36076a44b135b3b321c3eb7e90f1b668906f65ea7a127476aa6f8c4c1603718
Markdown26d0af492ccda9c7ef3b570c49456717b9c2a766fc7c583325a9b5a56d7f17e9
PDF
Publication page831a38bc3cd437eccd1cd45f0a4de73d65dd9cc17c6bfa76ff39855dcf6ff945
Manifest142c1769982100982e467555c68022d0b35e46641436ec9afaa45b26bb1d2dee

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
Signatureeu6I8TaeabChhU0kRSFygN8sIfOD25cMlymKGA+DqwSp4lX34AI+q7Ml9ZYjr7j2UnvncrYZ114+Qu6UOHcyCw==
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

2026-09-16T08:30:03.918088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006300
observed 831a38bc3cd437eccd1cd45f0a4de73d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:03.903202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006300/manifest.json
observed 142c1769982100982e467555c68022d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:03.886359ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006300/publication.md
observed 26d0af492ccda9c7ef3b570c49456717...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:03.753863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006300/publication.txt
observed a36076a44b135b3b321c3eb7e90f1b66...
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.