OpenTechnical

OT-2026-000000383

Publication integrity record

Systems and methods for a hydraulic tool

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-2026-000000383) never changes.

Identity and time

Publication numberOT-2026-000000383 · never reused
Internal UUID01a0a673-4c3e-7402-9203-e7b0a41c72ab · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:49.151235Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000383
StatusPUBLIC

Content hashes

Canonical text203594bea603f7e867e26459fe1b2118b366dff93f6291df7bcbfa2b7533a57e
Markdownd934d0e9f0b2dabf15b7535bb37e9d56b23ad685c819b686f305e39add62cafa
PDF
Publication page89cbc329e70d4c6406c3392952ebfb363c2171aa7bc013a827e56ca7dcecb1a2
Manifest305dcebbd4e571bd6d61fb1b0aed7ea4eadb576ee1059b8e5de9a3d99ecd5509

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
SignaturefWwx0GeLlznkup2DS+39q7Ns08UEzv0b6bS9zCMmiB0JUfqMACyd7Q/My8RSxgmjpuuxYdAPCvln2MxM+ZZWAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-09-17T04:23:06.161763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000383
observed 89cbc329e70d4c6406c3392952ebfb36...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T04:23:06.148357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000383/manifest.json
observed 305dcebbd4e571bd6d61fb1b0aed7ea4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T04:23:06.132052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000383/publication.md
observed d934d0e9f0b2dabf15b7535bb37e9d56...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T04:23:06.086322ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000383/publication.txt
observed 203594bea603f7e867e26459fe1b2118...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-15T20:50:16.261086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000383
observed 89cbc329e70d4c6406c3392952ebfb36...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:16.108224ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000383/manifest.json
observed 305dcebbd4e571bd6d61fb1b0aed7ea4...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:16.095148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000383/publication.txt
observed 203594bea603f7e867e26459fe1b2118...
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