OpenTechnical

OT-2026-000001870

Publication integrity record

Method and device for mounting a headrest for a vehicle seat

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-2026-000001870) never changes.

Identity and time

Publication numberOT-2026-000001870 · never reused
Internal UUID01a0a679-2051-75ac-8a0b-c49cf2c641a8 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:09:11.121598Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001870
StatusPUBLIC

Content hashes

Canonical text02118f1983117b814a1b8752013e71adb71f5e140ccd44b2df5336469e7facfa
Markdown9110b2a9218bd47eb27c2d88c10189a8902b0656930da4b3f9cb620f39db3ef6
PDF
Publication page4a015ca78b94674753d1c705bca9ce2c161b70e90e8c3a0f84022086e959aa70
Manifest7a82f67dfc2c07dfce0ce487dca91d97bd09ae6c2d54ca764efc4158e69d7e36

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
SignatureH1pBnGqRXQbXZ3gEih1jih2mqE97FbglkPLR0+u1y2IPWjOFL1hBHmRn1rqHDXGa6AEnjKoU2eF7Fawk3oKQCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-09-16T08:44:43.879449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001870
observed 4a015ca78b94674753d1c705bca9ce2c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:44:43.645937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001870/manifest.json
observed 7a82f67dfc2c07dfce0ce487dca91d97...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:44:43.446751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001870/publication.md
observed 9110b2a9218bd47eb27c2d88c10189a8...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:44:43.149973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001870/publication.txt
observed 02118f1983117b814a1b8752013e71ad...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T19:10:16.660665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001870
observed 4a015ca78b94674753d1c705bca9ce2c...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:16.631484ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001870/manifest.json
observed 7a82f67dfc2c07dfce0ce487dca91d97...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:16.618090ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001870/publication.txt
observed 02118f1983117b814a1b8752013e71ad...
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