OpenTechnical

OT-2026-000001841

Publication integrity record

Systems, methods, and computer program products for populating environment models

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-2026-000001841) never changes.

Identity and time

Publication numberOT-2026-000001841 · never reused
Internal UUID01a0a678-f2a6-7afc-97ba-646bbd7fbdd5 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:08:59.430732Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001841
StatusPUBLIC

Content hashes

Canonical text9da1dd9e81ea31e5d87de1ff14c15e4a56f1972e08f67b39f44f913a11b9f038
Markdown5864df1be9ee9682b2fcfb3e22097d4dc983146c3e5381c7ea9d99da5583fd7d
PDF
Publication page74078554e01e4dade9a1e5f033a8767b3dfc56a333c2af808d1be1fa426088d8
Manifestddd28babd0a5bc3f01c2f34b99134bb5f21459b025fed0002dfb71cf578e150b

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
SignatureBWgpqCJFBlqJK5sswWWPvansPLLmFebagN8BtBA8wd6OEXks4tDFJDGGyUoU5fZGLZvpqqGVQW1wZp2so4LfCQ==
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

2026-09-21T04:43:37.163480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001841
observed 74078554e01e4dade9a1e5f033a8767b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-21T04:43:36.911826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001841/manifest.json
observed ddd28babd0a5bc3f01c2f34b99134bb5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-21T04:43:36.625495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001841/publication.md
observed 5864df1be9ee9682b2fcfb3e22097d4d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-21T04:43:36.115854ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001841/publication.txt
observed 9da1dd9e81ea31e5d87de1ff14c15e4a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T19:10:19.856331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001841
observed 74078554e01e4dade9a1e5f033a8767b...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:19.826764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001841/manifest.json
observed ddd28babd0a5bc3f01c2f34b99134bb5...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:19.690040ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001841/publication.txt
observed 9da1dd9e81ea31e5d87de1ff14c15e4a...
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