OpenTechnical

OT-2026-000003463

Publication integrity record

Cylinder type hydraulic clamp

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-2026-000003463) never changes.

Identity and time

Publication numberOT-2026-000003463 · never reused
Internal UUID01a0a6c4-14f1-73e2-bdc0-ca825a641d58 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:31:03.409445Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003463
StatusPUBLIC

Content hashes

Canonical text294758b610d93ce5831d253384953dc9cf597807de8c9de18461a86936655f74
Markdownbeaae81e0979987782196a810ee84395611c5e053618206758b467c8843753bf
PDF
Publication pageca38e6d2523be4746b6146f076a466a7333a83932566bd5561c1444362b89cde
Manifest36ba66a9ac831c0f57f44325ecc71117f517c86a9b0a9d6720df50da6e9f53cb

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
SignatureVE3OPAKCtGb74gOTorLndeJlTFoGb5lJC8epngoiQIRV3uF545kBV7arrkwrtqWDHQPp4wCJgAOL+5y19tqpBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:36:25Z
batch OT-TS-2026-W38-006 · RFC 3161 token · inclusion proof
root 40fdb380c9f41bd58bb35c455dde2c7d...

Independent retrieval

2026-09-15T20:40:07.044379ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003463
observed ca38e6d2523be4746b6146f076a466a7...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:07.012997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003463/manifest.json
observed 36ba66a9ac831c0f57f44325ecc71117...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:06.999846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003463/publication.txt
observed 294758b610d93ce5831d253384953dc9...
fetched by instance-3.rotem.ai from 127.0.0.1, 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent