OpenTechnical

OT-2026-000003342

Publication integrity record

Rotatable hydraulic grapple

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-2026-000003342) never changes.

Identity and time

Publication numberOT-2026-000003342 · never reused
Internal UUID01a0a6b3-74d9-70ef-aa7f-a474e165500f · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:12:53.850343Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003342
StatusPUBLIC

Content hashes

Canonical text98b012acff3a03706ffc8861099e743ddb2a123b9e1713406a36392d48ef0d92
Markdownea6b264c245c648aa610f16f840b0e59e051ce93594e6537d4766356b534d006
PDF
Publication page4f6df3aff5376719e458796e6ee5916f8ecb5f9e2e56f9d0a4cabc3217e35772
Manifest076f4d5ccac55b4e52b3c0f4500a6ab8b16cc1f519883bef3a5fcef4659917a1

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
SignatureAwMFg3a9HHscYwYyoOCHCs2Q4TYTnXdtN/Xz/eQmqWyw+yWzyfHWqCjWBcaYIxA7UNPIBZa4aqclJZTvPgHKAg==
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

2026-10-23T08:41:52.590474ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003342
observed 4f6df3aff5376719e458796e6ee5916f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-23T08:41:52.486014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003342/manifest.json
observed 076f4d5ccac55b4e52b3c0f4500a6ab8...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-23T08:41:52.376836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003342/publication.md
observed ea6b264c245c648aa610f16f840b0e59...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-23T08:41:52.237309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003342/publication.txt
observed 98b012acff3a03706ffc8861099e743d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:42:18.958798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003342
observed 4f6df3aff5376719e458796e6ee5916f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:42:18.476899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003342/manifest.json
observed 076f4d5ccac55b4e52b3c0f4500a6ab8...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:42:17.442102ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003342/publication.md
observed ea6b264c245c648aa610f16f840b0e59...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:42:16.955283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003342/publication.txt
observed 98b012acff3a03706ffc8861099e743d...
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