OpenTechnical

OT-2026-000002157

Publication integrity record

Guardrail Hardware Removal Tool

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-2026-000002157) never changes.

Identity and time

Publication numberOT-2026-000002157 · never reused
Internal UUID01a0a67a-ee86-732d-a224-42475861eac8 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:11:09.447041Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002157
StatusPUBLIC

Content hashes

Canonical text228121c0116182f8fa936066108c6e138b867540f7c566635a746935255aa9cf
Markdown6a963400558bf06ea4038d57828a920d2331aafced632b5d02a48ced28d6eec6
PDF
Publication pageff56d4b2e368bab9d605e59812a1fc6911a9669a39720c015e6ca7a4d7ddbed4
Manifest86c854939815c8f30975d5eafc1bb2710c628e1f4225b41a396dbf3839696638

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
SignaturepPguqXwQcUvtU4U9JUE349pdP5O8RqrJ6sh84Hm+77a3IAt1vYdg6dNMOtmKabNPeNh5Se4ZCELKAEGCSVDKAQ==
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

2026-10-01T12:41:39.358972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002157
observed ff56d4b2e368bab9d605e59812a1fc69...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-01T12:41:39.290933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002157/manifest.json
observed 86c854939815c8f30975d5eafc1bb271...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-01T12:41:39.196189ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002157/publication.md
observed 6a963400558bf06ea4038d57828a920d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-01T12:41:39.023401ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002157/publication.txt
observed 228121c0116182f8fa936066108c6e13...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T19:50:19.092526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002157
observed ff56d4b2e368bab9d605e59812a1fc69...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:19.061006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002157/manifest.json
observed 86c854939815c8f30975d5eafc1bb271...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:18.923164ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002157/publication.txt
observed 228121c0116182f8fa936066108c6e13...
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