OpenTechnical

OT-2026-000003131

Publication integrity record

Clamping device for detachably connecting two profiled parts

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-2026-000003131) never changes.

Identity and time

Publication numberOT-2026-000003131 · never reused
Internal UUID01a0a691-50fd-7939-87e6-4df66dc93ed4 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:35:36.446104Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003131
StatusPUBLIC

Content hashes

Canonical text25041f58f68e8a6c84f5bca7e1b36e2ab5cfe4ed0322bb8036f58edc44770d47
Markdownd431371c6f57b895c1b2d75d19bd98287ce70d3e368262943e7ead7a9c7aa866
PDF
Publication pagefe26e1d12bbd59451a58ca6369065ca255d44065847582027162ed256946b6dd
Manifest910eb42b21c2c30f8f9b37ce52069d7b55c094a1b0b44cda5f712a0c3248e1da

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
SignaturearMu1iub4sqUVlg1lAM9SCVpFctawTp9/z+4p+lGlNJfjBRAxKKmOIfWcHGn1wGCaU8vWKpqq+dCzp1sZ7b8CQ==
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

2026-10-10T20:41:49.957393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003131
observed fe26e1d12bbd59451a58ca6369065ca2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T20:41:49.852702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003131/manifest.json
observed 910eb42b21c2c30f8f9b37ce52069d7b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T20:41:49.785238ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003131/publication.md
observed d431371c6f57b895c1b2d75d19bd9828...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T20:41:49.693847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003131/publication.txt
observed 25041f58f68e8a6c84f5bca7e1b36e2a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T12:41:41.914790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003131
observed fe26e1d12bbd59451a58ca6369065ca2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T12:41:41.754959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003131/manifest.json
observed 910eb42b21c2c30f8f9b37ce52069d7b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T12:41:41.583486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003131/publication.md
observed d431371c6f57b895c1b2d75d19bd9828...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T12:41:41.352175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003131/publication.txt
observed 25041f58f68e8a6c84f5bca7e1b36e2a...
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