OpenTechnical

OT-2026-000002736

Publication integrity record

High-temperature resistant robot for hazardous environments

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-2026-000002736) never changes.

Identity and time

Publication numberOT-2026-000002736 · never reused
Internal UUID01a0a67e-74a9-7baa-b186-0d8dc3b7d29e · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:15:00.394305Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002736
StatusPUBLIC

Content hashes

Canonical text28964fce03b6c70e17ae60220caa6df98f623e589efa0ee9d8dd1eba4a7f2a70
Markdownf27e336bd06d55b879fc22cdf1f1350d489a000e2a5d00dbf25039f71d85e8ff
PDF
Publication page46a46b169d5b5fe88b22d82258774c2fef4a1fbaba6cb0794f2d621dee74f1e1
Manifest75deeaf4f0ffe4505f3f2f6a73c7fe9474bce482c95c2472182b477b408b3059

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
Signature4eWi4Jy6Nn/1J6hKMR20bW2W4YtYbig/oPt0cvtSQQ5u03imyJxHR1+QUh/621lx7OdxCveqqkpykCLU7twDAQ==
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

2026-09-16T16:41:33.793947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002736
observed 46a46b169d5b5fe88b22d82258774c2f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:41:33.663413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002736/manifest.json
observed 75deeaf4f0ffe4505f3f2f6a73c7fe94...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:41:33.521043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002736/publication.md
observed f27e336bd06d55b879fc22cdf1f1350d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:41:33.370459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002736/publication.txt
observed 28964fce03b6c70e17ae60220caa6df9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T19:30:10.641993ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002736
observed 46a46b169d5b5fe88b22d82258774c2f...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:10.610974ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002736/manifest.json
observed 75deeaf4f0ffe4505f3f2f6a73c7fe94...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:10.597114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002736/publication.txt
observed 28964fce03b6c70e17ae60220caa6df9...
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