OpenTechnical

OT-2026-000002802

Publication integrity record

Guide robots for passenger assistance

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-2026-000002802) never changes.

Identity and time

Publication numberOT-2026-000002802 · never reused
Internal UUID01a0a67e-dd5e-7a6a-bdc7-5661831a38f1 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:15:27.323887Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002802
StatusPUBLIC

Content hashes

Canonical text184bbd67fe4c67746de8327b8f03e9d5afe5beed2e18dcd029e97b2d66cd2bba
Markdowneea6438c63004783be94f22ac1db51c13423ffa375e7b93c12e5d5680a243e2d
PDF
Publication page793c13b867249f6bf556448b161440e32ea0537eb41ccc004ced8eb5e0264a8a
Manifest91bfa67803157172890b4d5761deae130b3b00dae74bf30151449654c8899c6d

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
SignatureHgM7VhisH78aO+T9aFd2+qmrNBL949BEewhcu5xDnJmfHWPGxDXbiJKKU2mm7mo4w+Tlq5hJ5rj9BU5xbmfHAQ==
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

2026-09-15T19:20:32.381176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002802
observed 793c13b867249f6bf556448b161440e3...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:32.226430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002802/manifest.json
observed 91bfa67803157172890b4d5761deae13...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:32.135596ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002802/publication.txt
observed 184bbd67fe4c67746de8327b8f03e9d5...
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