OpenTechnical

OT-2026-000000863

Publication integrity record

Non-circular body gate valve with skirt plate having spacers and method

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-2026-000000863) never changes.

Identity and time

Publication numberOT-2026-000000863 · never reused
Internal UUID01a0a673-ee92-7a1f-ae1c-9c3a617b4536 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:30.707454Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000863
StatusPUBLIC

Content hashes

Canonical text937fc6e669cf334b273d79a64eeab5ae304816c2232e0bf9f31c260865a53b83
Markdown11a65c2e96c6e34ac9794d1f0220597722760eef53a4780f4fcc277a59e7484c
PDF
Publication pagefb86314dde606b49b40c9b38bf29d02de38632ffe26908b14c3bd3a6f562185c
Manifest3f8cc81b17e4638965566376f23bce9b2adc18df4adb8e0bde996118dbf97f40

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
Signaturei9gZMcvJZ0q+VRaFnH+djqcMtwYksvnLLKF1Nlaz0TTpoe0uCtn/mgGWZ05jRd8J6JQEbcf54o5CUZIYD9VTAQ==
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

2026-09-15T20:30:26.375130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000863
observed fb86314dde606b49b40c9b38bf29d02d...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:26.218492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000863/manifest.json
observed 3f8cc81b17e4638965566376f23bce9b...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:26.204070ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000863/publication.txt
observed 937fc6e669cf334b273d79a64eeab5ae...
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