OpenTechnical

OT-2026-000001230

Publication integrity record

Portable lifting crane

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-2026-000001230) never changes.

Identity and time

Publication numberOT-2026-000001230 · never reused
Internal UUID01a0a674-a80c-76f0-9dd4-33edeadb3f3c · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:04:18.188439Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001230
StatusPUBLIC

Content hashes

Canonical text7402b022821d366d42beec2b0a6f00c4e167a1634820d99e742c21f22120a0c6
Markdowne0fa021d77e61d06a0f3cb831ad4eb7589499ba14b2202d7af63916b54634eb1
PDF
Publication page683713853d37dee7b02591384aa69a9e552a5a026f211acba17912a23b5119e3
Manifest1811474ce480d3d65451bd4f4b425bcb789eec657d7902e14b085f6268c1ed94

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
SignaturevooOlSTCUKCnElGHJcceYJo2AqBQYKSO68qO95ftgg5iO6mUXRyJ+3KJ+SMyMJStKh+jupWkHPx+6XTmj5F6Dg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-09-16T16:42:22.749903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001230
observed 683713853d37dee7b02591384aa69a9e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:42:22.548736ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001230/manifest.json
observed 1811474ce480d3d65451bd4f4b425bcb...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:42:22.343269ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001230/publication.md
observed e0fa021d77e61d06a0f3cb831ad4eb75...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:42:21.993913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001230/publication.txt
observed 7402b022821d366d42beec2b0a6f00c4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:10:41.713161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001230
observed 683713853d37dee7b02591384aa69a9e...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:41.559761ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001230/manifest.json
observed 1811474ce480d3d65451bd4f4b425bcb...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:41.547457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001230/publication.txt
observed 7402b022821d366d42beec2b0a6f00c4...
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