OpenTechnical

OT-2026-000002540

Publication integrity record

Self-contained transportable electric heave compensation system

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-2026-000002540) never changes.

Identity and time

Publication numberOT-2026-000002540 · never reused
Internal UUID01a0a67d-490c-7cd4-bc97-1dc54d0cab48 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:13:43.692609Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002540
StatusPUBLIC

Content hashes

Canonical text6248d188b6f5c3c2e4f341db8d7b5d479b8cf540af7f0a11efa7ed85c791c8e6
Markdowne021345ea396c55eaa1e772617be1375af3a7f587eb3653511b3fd8dc95c158b
PDF
Publication page279b0ebb576af0220396578bfecf582efc6b2b6810f2bb69efb2b009e4a79967
Manifest7d7b4b24ae49b0e3b4d2548f6ec20945e5248c252abfe287720383f07ebe0003

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
SignaturePpWvHyAhg1oexnZ+9ToQdevcwNQZy7VnKFUT/1sOvQsoHrsm7slxW99X0Ca5NQdpTdQJGRpEozD16plfbhAfDQ==
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

2026-09-15T19:30:35.576642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002540
observed 279b0ebb576af0220396578bfecf582e...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:35.417247ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002540/manifest.json
observed 7d7b4b24ae49b0e3b4d2548f6ec20945...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:35.405256ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002540/publication.txt
observed 6248d188b6f5c3c2e4f341db8d7b5d47...
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