OpenTechnical

OT-2026-000025178

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, sustained blow-off before set-down

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-2026-000025178) never changes.

Identity and time

Publication numberOT-2026-000025178 · never reused
Internal UUID01a0ae71-5fa5-7d15-a7ca-7c900821fc83 · 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-2026-000025178
StatusPUBLIC

Content hashes

Canonical textbaf01bbdf820366a7f2270417d42c17f2c5d1c3dc5a6412ecb984267ee389957
Markdown39def866fd549cef1dcd1ab70cd945cad5be30e82aa89dd95fb372b2e866e1bf
PDF
Publication page85b4e05cea8d08b1026bb9d9a7b4c68b121a841ae429bea44a2dd6d4f1ff7fd9
Manifest09e8589d8cb5a4d97d17a725fe0636c98f89e612147f735b19cca68dc53228ff

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
SignatureCtKWNpOg9ILhl3bgdCWxuNJg29P9SIY0fZLj+lKwqDL7Kx4JJBbrgvwD28+qD206OouGPYLzxHu2RQumagiCAg==
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

2026-09-17T11:47:09.464190ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025178
observed 85b4e05cea8d08b1026bb9d9a7b4c68b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:09.438386ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025178/manifest.json
observed 09e8589d8cb5a4d97d17a725fe0636c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:09.323978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025178/publication.md
observed 39def866fd549cef1dcd1ab70cd945ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:04.333799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025178/publication.txt
observed baf01bbdf820366a7f2270417d42c17f...
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.