OpenTechnical

OT-2026-000002185

Publication integrity record

Method and system for automated and semi-automated ultrasound scanning

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-2026-000002185) never changes.

Identity and time

Publication numberOT-2026-000002185 · never reused
Internal UUID01a0a67b-1721-72a4-91f4-4877f9408673 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:11:19.842317Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002185
StatusPUBLIC

Content hashes

Canonical text9aabb4ac98a28a74e58c1890c1ff39b826a22b1b8a8332e1d45457fd5137fb3c
Markdown9fc166e9800edcfaf4afba3c1bc8cb5085bf1253055db13cf731ec87e90505a3
PDF
Publication paged182e455d563b398af02b8b8c47a20fa820064ef39c377d005301c196d2d8a94
Manifest3e1a40a87b352133304ce6ce8a2238e3de56d2c1a4f57e40a079b97d60dc1a05

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
Signature+hQlei3yKmFOKDfU273/M4VzfzRc30X1NvxHIGDle6TUJUYJGCGAqWmt+DcrbxBs8LmCdQf1s3jpCwd5bqJgDQ==
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

2026-09-16T04:23:03.879365ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002185
observed d182e455d563b398af02b8b8c47a20fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:03.866297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002185/manifest.json
observed 3e1a40a87b352133304ce6ce8a2238e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:03.852495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002185/publication.md
observed 9fc166e9800edcfaf4afba3c1bc8cb50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:03.804619ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002185/publication.txt
observed 9aabb4ac98a28a74e58c1890c1ff39b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-15T19:50:16.059828ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002185
observed d182e455d563b398af02b8b8c47a20fa...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:15.907482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002185/manifest.json
observed 3e1a40a87b352133304ce6ce8a2238e3...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:15.894167ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002185/publication.txt
observed 9aabb4ac98a28a74e58c1890c1ff39b8...
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