OpenTechnical

OT-2026-000003094

Publication integrity record

Vacuum tool fixture

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-2026-000003094) never changes.

Identity and time

Publication numberOT-2026-000003094 · never reused
Internal UUID01a0a68a-0641-7520-b5fa-d5f307e643dd · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:27:38.562006Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003094
StatusPUBLIC

Content hashes

Canonical text1e53bb6d3bb22348633d96bff5141365bd762e867675e9ab82bc02e8a7e8636f
Markdown0df30f7551d003bf69e1011c8a6afa3120a3c14c445398b274e2431f8e381491
PDF
Publication pagecd7f2914fd125dde59ac99a8bd862b967a64fc1d48a09bfaa3a2d4e95ee450d3
Manifest55046e2719293f5ce2ee28fea0411564a4ff0d0bb1b14f5858ab61793bfefad3

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
SignatureU3sIDpmn+eD4X5KiRDbD1KhwnrFYGJ1m5xwYyqSPRZnkRze3GBnBdVGbq+K5YCAizjzceZSppVQs8f8pgCXBCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:47:02Z
batch OT-TS-2026-W38-003 · RFC 3161 token · inclusion proof
root 713cd89b73be422b38f7894d4fb6a755...

Independent retrieval

2026-09-15T19:30:03.648277ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003094
observed cd7f2914fd125dde59ac99a8bd862b96...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:03.619067ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003094/manifest.json
observed 55046e2719293f5ce2ee28fea0411564...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:03.606923ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003094/publication.txt
observed 1e53bb6d3bb22348633d96bff5141365...
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