OpenTechnical

OT-2026-000000535

Publication integrity record

Differential locking device for a differential gear

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-2026-000000535) never changes.

Identity and time

Publication numberOT-2026-000000535 · never reused
Internal UUID01a0a673-81ad-72e0-8a79-9a3c1930c784 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:02.830028Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000535
StatusPUBLIC

Content hashes

Canonical textf1b9d75d692097713dcf1339a2a8c3fe3afec24fde7f4e27e5ddd097bb466c63
Markdownac013ba36ea5673290cc88d8cfdddbc3c07607509d9c75722ea6e73a419ba8c0
PDF
Publication pagebff2be668dfa8b7ee5e5ec41eb819bb2a1d5693075cd1f96644d65be9042f374
Manifest8ffa75590e21d0640ef04ff0416a971b08b0b2a1c64f8777a88ea0a662ece6af

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
SignaturemlcZHW7bFCxDCovQTJIwrTrj2H3erZm0Facc+1rgAYPpPs8tX3qX3GMtQeLgqU+GuRKTEneYQWoCA3fs3VK3BA==
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

2026-09-17T20:43:52.392566ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000535
observed bff2be668dfa8b7ee5e5ec41eb819bb2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T20:43:51.974023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000535/manifest.json
observed 8ffa75590e21d0640ef04ff0416a971b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T20:43:51.610869ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000535/publication.md
observed ac013ba36ea5673290cc88d8cfdddbc3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T20:43:50.889440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000535/publication.txt
observed f1b9d75d692097713dcf1339a2a8c3fe...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:29.914740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000535
observed bff2be668dfa8b7ee5e5ec41eb819bb2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:29.807405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000535/manifest.json
observed 8ffa75590e21d0640ef04ff0416a971b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:29.669859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000535/publication.md
observed ac013ba36ea5673290cc88d8cfdddbc3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:29.499757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000535/publication.txt
observed f1b9d75d692097713dcf1339a2a8c3fe...
fetched by grabo-systems from 34.44.131.203, 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