OpenTechnical

OT-2026-000000228

Publication integrity record

Liquid chemical tank module and liquid chemical supply apparatus including the same

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-2026-000000228) never changes.

Identity and time

Publication numberOT-2026-000000228 · never reused
Internal UUID01a0a673-2118-7ef5-b6c3-aa2e6f93b9ba · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:38.104848Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000228
StatusPUBLIC

Content hashes

Canonical text6168db8f82fc6e03615d527635a5989a582a16f9a37ed593fd964bbf429ffcb4
Markdownb814624d4bc3db7200af015e8cf0dcfb137230ae4528c7c5bb7026e6a941c006
PDF
Publication pagef4ca420bfa3b068bfcccbfe379772f3ad5dc496a654feb594f7ba5fa1119cd9c
Manifest34b16deaaf6ac42aba3a8213012c1d8d544296ad862c949be6f17c8b5c80cc2a

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
SignaturexsGpND9ZUcR6CylU54DatqvCOcHN26IFx1OE/uIjYRmv0x+fGLT421OfytexVB+IuhCGv3aUDw1vpOL3HYo5Bg==
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

2026-10-10T20:41:19.368781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000228
observed f4ca420bfa3b068bfcccbfe379772f3a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T20:41:19.295098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000228/manifest.json
observed 34b16deaaf6ac42aba3a8213012c1d8d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T20:41:19.223158ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000228/publication.md
observed b814624d4bc3db7200af015e8cf0dcfb...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T20:41:19.076810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000228/publication.txt
observed 6168db8f82fc6e03615d527635a5989a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:42:00.994713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000228
observed f4ca420bfa3b068bfcccbfe379772f3a...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:42:00.483681ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000228/manifest.json
observed 34b16deaaf6ac42aba3a8213012c1d8d...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:42:00.211758ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000228/publication.txt
observed 6168db8f82fc6e03615d527635a5989a...
fetched by grabo-systems 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