OpenTechnical

OT-2026-000000600

Publication integrity record

Mixing valve for the independent control of fluid pressure and fluid temperature

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-2026-000000600) never changes.

Identity and time

Publication numberOT-2026-000000600 · never reused
Internal UUID01a0a673-97a5-7e30-91cb-52872494fc85 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:08.454195Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000600
StatusPUBLIC

Content hashes

Canonical text726990acc060db24ed0fc109c5c4b73edeaec3c7f10c7ea88d58c008d992d411
Markdown30b2f4f4164c09edb3794b5d1eb84fd7dd647db2f2d56a1f8eba081e0e4760bb
PDF
Publication page80f286a12b872fe879dbdc59ff656f16775d5c5038852449a7ed803a636155c0
Manifest1e9beb4a89d049f45c06344ceae4fb4a07606bba3f40bb9f0e1f71d8a98c0b0c

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
SignatureQMU0DylOqi8eKuGGEfeiu4OrZ4HQnbrWFnGmqDrBTZGp48jJDcogzwY6UIOuwnHoh+Crd9tJc9CqYznKKW50DA==
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

2026-09-28T20:41:22.568581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000600
observed 80f286a12b872fe879dbdc59ff656f16...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-28T20:41:22.492203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000600/manifest.json
observed 1e9beb4a89d049f45c06344ceae4fb4a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-28T20:41:22.415282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000600/publication.md
observed 30b2f4f4164c09edb3794b5d1eb84fd7...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-28T20:41:22.277827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000600/publication.txt
observed 726990acc060db24ed0fc109c5c4b73e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:40:25.558134ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000600
observed 80f286a12b872fe879dbdc59ff656f16...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:25.531759ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000600/manifest.json
observed 1e9beb4a89d049f45c06344ceae4fb4a...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:25.519429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000600/publication.txt
observed 726990acc060db24ed0fc109c5c4b73e...
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