OpenTechnical

OT-2026-000000147

Publication integrity record

Pump plug removal and 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-2026-000000147) never changes.

Identity and time

Publication numberOT-2026-000000147 · never reused
Internal UUID01a0a673-0b44-7d5c-b4fa-b45a9467aef7 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:32.517343Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000147
StatusPUBLIC

Content hashes

Canonical text2e359bd413aabf4c031c1982e8330a12fec87a746ba875b80cbcd1ffe0462f7a
Markdownd5958d142997bafd95cb60ca7df58cc1a0c533bbe8f4e2af225d484833689b7a
PDF
Publication page9a06a06c3ba40df6e0cf6dbec03544160cd48b89923982935ab537b55975f165
Manifestfd47bd925703a5603e64e7f4b84e2c7023b76aeb770b3d2fb882c3fd5f303168

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
SignaturecsDzJIOTINPC2be168iFr2e3hoC6JbUIQpwqYjOVK+goIsdj6ja2zv19y+eHIOEeAZ4IoVw1dOBf3FIHmqwVCw==
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

2026-09-29T20:41:56.052942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000147
observed 9a06a06c3ba40df6e0cf6dbec0354416...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T20:41:56.000396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000147/manifest.json
observed fd47bd925703a5603e64e7f4b84e2c70...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T20:41:55.950978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000147/publication.md
observed d5958d142997bafd95cb60ca7df58cc1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T20:41:55.833766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000147/publication.txt
observed 2e359bd413aabf4c031c1982e8330a12...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T00:43:45.791961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000147
observed 9a06a06c3ba40df6e0cf6dbec0354416...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T00:43:45.649589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000147/manifest.json
observed fd47bd925703a5603e64e7f4b84e2c70...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T00:43:45.524267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000147/publication.md
observed d5958d142997bafd95cb60ca7df58cc1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T00:43:45.370655ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000147/publication.txt
observed 2e359bd413aabf4c031c1982e8330a12...
fetched by grabo-systems from 34.44.131.203, 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