OpenTechnical

OT-2026-000033518

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, pulsed 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-2026-000033518) never changes.

Identity and time

Publication numberOT-2026-000033518 · never reused
Internal UUID01a0ae75-a38e-77a3-8a1a-d9eb62e9c0e5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:22:20.325649Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033518
StatusPUBLIC

Content hashes

Canonical textb36a0d51c393ceb214f633362eb10c641da97a1b1fcbb69d86be81b4b9996d36
Markdown9b74344029f6b431106f7942c5f03da38cb6d58d5492178016a51bb617c89e43
PDF
Publication page2a71e78bf30ef91ab7a28e78fb8bf6cededd03b7e77811521998eb5e43a52718
Manifest14221b663b56a2bbd0fb4724b1e72423328c521b4ed2b40ff0c3c77a47e5bdb9

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
Signature/zL56LYnu19AZldrj1mI3+3+UbsUBRPYhCxzmBr0Zl4e/upMVkfaLKuASFd0DhBsv+NqQTjIqLeaE3ARzK7iDw==
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

2026-09-17T11:31:22.452681ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033518
observed 2a71e78bf30ef91ab7a28e78fb8bf6ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:22.436544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033518/manifest.json
observed 14221b663b56a2bbd0fb4724b1e72423...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:22.420560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033518/publication.md
observed 9b74344029f6b431106f7942c5f03da3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:22.404595ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033518/publication.txt
observed b36a0d51c393ceb214f633362eb10c64...
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.