OpenTechnical

OT-2026-000043581

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, sustained blow-off after 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-2026-000043581) never changes.

Identity and time

Publication numberOT-2026-000043581 · never reused
Internal UUID01a0ae7b-92cf-7bc1-acf0-56918c38f68e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043581
StatusPUBLIC

Content hashes

Canonical text7541b38fbb53edf24c5ca5459b28eabb170d2518f90a695aae3901fcdd05d034
Markdown4fae8cd04abd02775f0025057542bee733550a209efb0017cbbd74fe488d73fb
PDF
Publication page100b8d3cb19a004bfef85184a196d9c38a472475a5a8b0d6f55625ee92a00d27
Manifest7d2cf50e07686e332ada5858a63b3bc5628e8d31fc20b6e006b2be9d63f6cbd3

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
SignaturesR3gCZx1bSc7pad9wbpcGDYWQmFy2AygZjy81wAJu2JSOJ5GU/jwdKCbcf0p9tN7FYnezk3VFEpltYdyJKGyBw==
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

2026-09-17T11:12:58.809899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043581
observed 100b8d3cb19a004bfef85184a196d9c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:58.790520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043581/manifest.json
observed 7d2cf50e07686e332ada5858a63b3bc5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:58.771942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043581/publication.md
observed 4fae8cd04abd02775f0025057542bee7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:58.752663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043581/publication.txt
observed 7541b38fbb53edf24c5ca5459b28eabb...
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.