OpenTechnical

OT-2026-000000523

Publication integrity record

Tool holder for delivering coolant with enhanced stiffness

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-2026-000000523) never changes.

Identity and time

Publication numberOT-2026-000000523 · never reused
Internal UUID01a0a673-7da4-77c9-a8b7-baf41b49290f · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:01.796440Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000523
StatusPUBLIC

Content hashes

Canonical text4c15cfa6d524cd7b39d2cfd10bb8ff78d3e5dc76e6ff6d477bccbcaaeb0aac86
Markdown4676a2f584079e8cf37ef5ae44e58b0371cca4ebc63543e6c34206d354047b4d
PDF
Publication page3d1a0e716c88aaab5437ad71edeb56d41a865785029cfac277595282d31242e8
Manifestf44848ff022d888fc7304de589b44e9fcba9ca529ecefe5bfc23fe71e66302d3

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
SignaturepeXfVnjtwrnJZb/SlRvyVu19wluxr+tNR9Jes6iXccjrbu/KIq9HaAnlQis3vfTCClh6BWrQrcPaKD0JvFaiDg==
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

2026-10-15T00:41:24.483610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000523
observed 3d1a0e716c88aaab5437ad71edeb56d4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-15T00:41:24.397992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000523/manifest.json
observed f44848ff022d888fc7304de589b44e9f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-15T00:41:24.348661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000523/publication.md
observed 4676a2f584079e8cf37ef5ae44e58b03...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-15T00:41:24.188055ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000523/publication.txt
observed 4c15cfa6d524cd7b39d2cfd10bb8ff78...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-11T04:41:17.054640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000523
observed 3d1a0e716c88aaab5437ad71edeb56d4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-11T04:41:16.950855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000523/manifest.json
observed f44848ff022d888fc7304de589b44e9f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-11T04:41:16.875048ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000523/publication.md
observed 4676a2f584079e8cf37ef5ae44e58b03...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-11T04:41:16.717495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000523/publication.txt
observed 4c15cfa6d524cd7b39d2cfd10bb8ff78...
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