OpenTechnical

OT-2026-000000206

Publication integrity record

Chrome flush valve installation tool

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-2026-000000206) never changes.

Identity and time

Publication numberOT-2026-000000206 · never reused
Internal UUID01a0a673-1b1f-7410-87f8-b5ab2ca22ded · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:36.576061Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000206
StatusPUBLIC

Content hashes

Canonical text88dd5bde2b14ed968efd17fba0d63a428a2c35eab596e9f75e25473cde4a0f13
Markdown2e6a95f5cbd626e76d8f5cc6de7e71edd9587afc24073d3886a43239ae9029ef
PDF
Publication pagea17572c0c1a40030ef309084c744204472dc3e18c4e73d9a5810fea6118d6de8
Manifest5a4297dadbe2f0ba60731db703584c2eb5d6d885f3c40a19fe7457f196888459

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
SignaturesjuI8iTuyfPWa6EYPPt63Ki5IQj5++oTaR6IxGmmsFd1qnBRTSkKmufIRw3epl96Q0wqhtOPgbH91OvtocohAQ==
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

2026-09-29T08:42:02.763165ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000206
observed a17572c0c1a40030ef309084c7442044...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T08:42:02.700229ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000206/manifest.json
observed 5a4297dadbe2f0ba60731db703584c2e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T08:42:02.635545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000206/publication.md
observed 2e6a95f5cbd626e76d8f5cc6de7e71ed...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T08:42:02.458565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000206/publication.txt
observed 88dd5bde2b14ed968efd17fba0d63a42...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-27T04:23:30.300461ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000206
observed a17572c0c1a40030ef309084c7442044...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-27T04:23:30.285630ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000206/manifest.json
observed 5a4297dadbe2f0ba60731db703584c2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-27T04:23:30.270361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000206/publication.md
observed 2e6a95f5cbd626e76d8f5cc6de7e71ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-27T04:23:30.255626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000206/publication.txt
observed 88dd5bde2b14ed968efd17fba0d63a42...
fetched by instance-3.rotem.ai from 34.69.0.72, 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