OpenTechnical

OT-2026-000003259

Publication integrity record

Device for magnetically engaging objects having variable surface contours

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-2026-000003259) never changes.

Identity and time

Publication numberOT-2026-000003259 · never reused
Internal UUID01a0a6a5-abb9-783a-82b8-10188b001857 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:57:50.393862Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003259
StatusPUBLIC

Content hashes

Canonical text7c1ac712e11af6650446779f3564bf0eb9b20bfab1bf03d94aa35b4dbc1f0fcc
Markdown6434a3a27a88b272eaeda1047848f0f877411f162fef21ceff5dd86470571889
PDF
Publication page30e195a93a5a32a8fc0e31dcea81c3a7fe5fb8a8abec084e55a511cbcc4e2b0f
Manifest0ed3ae4bfc1a4c8a2117690661fa4ad4612c3d8679bac129624b5d1044d81287

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
Signaturea+bWGnlOo8l3NJHeC/I4fqIdL+rz8GDj5ckUneHVy3jq1EFVAFSplZNseUutNohvmZHGfVOLZeRUl9tSMsNTAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:07:03Z
batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof
root d42f3e627490c26ffd144bf37543fecf...

Independent retrieval

2026-09-15T20:00:04.729991ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003259
observed 30e195a93a5a32a8fc0e31dcea81c3a7...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:04.694517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003259/manifest.json
observed 0ed3ae4bfc1a4c8a2117690661fa4ad4...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:04.680591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003259/publication.txt
observed 7c1ac712e11af6650446779f3564bf0e...
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