OpenTechnical

OT-2026-000025174

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained blow-off before set-down, on a tool changer

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-2026-000025174) never changes.

Identity and time

Publication numberOT-2026-000025174 · never reused
Internal UUID01a0ae71-5fa5-733c-8bbb-f2b75b359fc9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025174
StatusPUBLIC

Content hashes

Canonical text998a8dbeb88d0a05e9469fba7bd4e5fc8e4fd01467fe8f5a768f91693bb70899
Markdown92adc5e2c76f043e80b2fff7d62a4376d5fc4731549ab08a356bc2f09ba38a9b
PDF
Publication page74a7c79f9d24188fc525fbcc2424ed508c71524582dd0b3ea62c509683c72af3
Manifest43ed2c9e9fa2e8c1f6198d185e4f7283656abd61a263a80b772745e3a5cca045

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
SignaturemnV8JyAPecOc/K4NvC+niLQePwFESD33nvR1+ED6ojZVDb9La4xKO+F1qoipx17OP1WAgvSzQx+upEjaL3t5DA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:47:04.062693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025174
observed 74a7c79f9d24188fc525fbcc2424ed50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:04.046066ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025174/manifest.json
observed 43ed2c9e9fa2e8c1f6198d185e4f7283...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:04.025958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025174/publication.md
observed 92adc5e2c76f043e80b2fff7d62a4376...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:04.010019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025174/publication.txt
observed 998a8dbeb88d0a05e9469fba7bd4e5fc...
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

Custody packagePending Custody packages are produced weekly.