OpenTechnical

OT-2026-000005231

Publication integrity record

Vacuum cup gripper, per zone isolation, two stage ejector, pressure verified, 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-2026-000005231) never changes.

Identity and time

Publication numberOT-2026-000005231 · never reused
Internal UUID01a0a932-28ed-703c-9e3e-c42c7b207e9a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:50:31.920496Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005231
StatusPUBLIC

Content hashes

Canonical text804db754408c2709e6242bda99e4907fa782abbf4a2a966071ed23a8271ce39c
Markdownc4c006203bdef593909e85fa62073c040b12dea7a98bb055db5f4dfbc9ee7e93
PDF
Publication paged43eda29b56337f2b7062e42ddc7d65310d7b2b20793096919ee20e12482499c
Manifestc749c55d05dd2c6286874ceed8cbfaa025103427a3830fb57cfa1fed33bbc6e8

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
SignatureZqEaO/RCMW/lWnmCVvAN4MO6IOqZh4CGJbJpjSSDsTCFao1V+CIhhfsjrvjqHsn3jdEQTsJRT0WTSAh5vO3LCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:32.955709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005231
observed d43eda29b56337f2b7062e42ddc7d653...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:32.941627ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005231/manifest.json
observed c749c55d05dd2c6286874ceed8cbfaa0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:32.927497ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005231/publication.md
observed c4c006203bdef593909e85fa62073c04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:32.910463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005231/publication.txt
observed 804db754408c2709e6242bda99e4907f...
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.