OpenTechnical

OT-2026-000002339

Publication integrity record

Suction unit and suction device

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-2026-000002339) never changes.

Identity and time

Publication numberOT-2026-000002339 · never reused
Internal UUID01a0a67c-06a8-71d6-ba1e-b0fb647ef8b5 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:12:21.161506Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002339
StatusPUBLIC

Content hashes

Canonical texte3792420fdb370e190f8c15c9a0767bf8abdfb492983c796bcac2ed1893aaee1
Markdown2064f58a2c6913fbe0ad1fbf8fb9cd78c158a793b5e52cd069f98974d0f4574a
PDF
Publication page38e2ff9473f7cfd3842500644b310d64e27c7c5e553b2c7aa2920ffe48f091aa
Manifestff20de56ef9653e4be382d79b6bf46ca4555ce1e6333db47333b28df6c33c05b

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
SignaturenAXgH00r9XG3CZGrmmcDSzHPa7f8MiBcx1PgZIIfOKdW0+uJdpWPQc1Ayc92g8Q2TTw/duCvg89ikmnmA2sTCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-10-19T16:41:46.692871ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002339
observed 38e2ff9473f7cfd3842500644b310d64...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T16:41:46.646287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002339/manifest.json
observed ff20de56ef9653e4be382d79b6bf46ca...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T16:41:46.581799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002339/publication.md
observed 2064f58a2c6913fbe0ad1fbf8fb9cd78...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T16:41:46.415550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002339/publication.txt
observed e3792420fdb370e190f8c15c9a0767bf...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T04:23:18.039958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002339
observed 38e2ff9473f7cfd3842500644b310d64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-19T04:23:18.027319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002339/manifest.json
observed ff20de56ef9653e4be382d79b6bf46ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-19T04:23:18.015265ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002339/publication.md
observed 2064f58a2c6913fbe0ad1fbf8fb9cd78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-19T04:23:17.933283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002339/publication.txt
observed e3792420fdb370e190f8c15c9a0767bf...
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