OpenTechnical

OT-2026-000003288

Publication integrity record

Integrated group of excavator control assemblies

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-2026-000003288) never changes.

Identity and time

Publication numberOT-2026-000003288 · never reused
Internal UUID01a0a6aa-9c7f-7d6c-af6e-6a04bc8d8307 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:03:14.175398Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003288
StatusPUBLIC

Content hashes

Canonical textd6162158791ea01abf339efdaa4dd72fe111943823dc29dda6ecaa1983f733b1
Markdown98d423a4dcd904e60190453d28d46b3da58acd928ae156c3be177f50352c5cdd
PDF
Publication page1223e0498b64f8e30fc0a87ad070492da981471e1ad01cd4fef38f6c53a46a9d
Manifeste0a85224e5521bece69ccededafe5a0642df85b9171e58811414f34494112bcb

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
SignatureJXHyO3Ewr93dg8Af/482VZrrdAg8d9H0uTYTR89K2ESi3tkxh9jg417ZdKYEYafVQS3zdGJltnppUpN3LwACDQ==
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

2026-10-30T00:41:56.292176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003288
observed 1223e0498b64f8e30fc0a87ad070492d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-30T00:41:56.225375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003288/manifest.json
observed e0a85224e5521bece69ccededafe5a06...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-30T00:41:56.160525ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003288/publication.md
observed 98d423a4dcd904e60190453d28d46b3d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-30T00:41:55.858978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003288/publication.txt
observed d6162158791ea01abf339efdaa4dd72f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:10:08.302094ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003288
observed 1223e0498b64f8e30fc0a87ad070492d...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:08.260281ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003288/manifest.json
observed e0a85224e5521bece69ccededafe5a06...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:08.246975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003288/publication.txt
observed d6162158791ea01abf339efdaa4dd72f...
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