OpenTechnical

OT-2026-000003423

Publication integrity record

Portable hand-held blower/vacuum unit with resilient engine mounting 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-2026-000003423) never changes.

Identity and time

Publication numberOT-2026-000003423 · never reused
Internal UUID01a0a6bf-3cd5-7c98-a67f-4ac940382795 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:25:45.942220Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003423
StatusPUBLIC

Content hashes

Canonical textbd8be23fdd89a2d7f840a659fcf942cd7fc83a62c9045faa9a368370bfb030d9
Markdownfe82bb7e34e4d0ef1bd210ad664e606090a619900392d2fc68dad4812a2fd176
PDF
Publication page3574b21a9d3578b96d620e737d470787906720364236a874ff223ee9761a3399
Manifeste34c1277054c0f6d519eb332f8ce42e08103b82e8e4a6420e3db1e0b29be3e43

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
SignatureNbB0G7ZbntWCOqYlCHLEaVdpChODFI7gGXM/t+IjyTc3TF4JDikvUjfuGlVwAl3A2FA7lg9UKPrbw1Bym0TlDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:27:02Z
batch OT-TS-2026-W38-005 · RFC 3161 token · inclusion proof
root 0d980c01ea01b2d7f69845e24a85320c...

Independent retrieval

2026-10-27T00:42:05.211231ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003423
observed 3574b21a9d3578b96d620e737d470787...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T00:42:05.124174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003423/manifest.json
observed e34c1277054c0f6d519eb332f8ce42e0...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T00:42:05.040565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003423/publication.md
observed fe82bb7e34e4d0ef1bd210ad664e6060...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T00:42:04.906219ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003423/publication.txt
observed bd8be23fdd89a2d7f840a659fcf942cd...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T08:41:37.453029ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003423
observed 3574b21a9d3578b96d620e737d470787...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T08:41:37.375072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003423/manifest.json
observed e34c1277054c0f6d519eb332f8ce42e0...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T08:41:37.262167ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003423/publication.md
observed fe82bb7e34e4d0ef1bd210ad664e6060...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T08:41:37.138745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003423/publication.txt
observed bd8be23fdd89a2d7f840a659fcf942cd...
fetched by grabo-systems from 34.44.131.203, 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