OpenTechnical

OT-2026-000001380

Publication integrity record

Handling system for handling sections of a structure

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-2026-000001380) never changes.

Identity and time

Publication numberOT-2026-000001380 · never reused
Internal UUID01a0a675-bd29-7d08-a2d3-2e4979f35ad8 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:05:29.129798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001380
StatusPUBLIC

Content hashes

Canonical text6d7c899fe32c78e4b237babf513ece53a160fd1ed1afcf7447110e2f9fdf5c23
Markdown50976af71cb3961519e589b8510b2c881ce066a4d8ddec1d60639b399622c640
PDF
Publication page16866e9302a7318486ec82567b7d1ab36ea3ec94a471aa86c04289c3883f7f20
Manifest65a8d308577a2663639576d0f767809e657e90519fb893593f2ec2cb4ba1fb8a

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
Signatureb0eYRsoLB1KTjCdVjBLzmmaCORwnM0pNgVX4I4/cuVZgVC5O5/tpRMXh/K8sokof83nXBuSIdFBL6eQIG4bODA==
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

2026-10-28T20:41:45.408000ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001380
observed 16866e9302a7318486ec82567b7d1ab3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-28T20:41:45.344238ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001380/manifest.json
observed 65a8d308577a2663639576d0f767809e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-28T20:41:45.282068ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001380/publication.md
observed 50976af71cb3961519e589b8510b2c88...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-28T20:41:45.015897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001380/publication.txt
observed 6d7c899fe32c78e4b237babf513ece53...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-23T16:41:24.115562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001380
observed 16866e9302a7318486ec82567b7d1ab3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-23T16:41:24.067370ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001380/manifest.json
observed 65a8d308577a2663639576d0f767809e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-23T16:41:23.985857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001380/publication.md
observed 50976af71cb3961519e589b8510b2c88...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-23T16:41:23.872386ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001380/publication.txt
observed 6d7c899fe32c78e4b237babf513ece53...
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