OpenTechnical

OT-2026-000050247

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, pump fed, pressure sensor per zone, pulsed 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-2026-000050247) never changes.

Identity and time

Publication numberOT-2026-000050247 · never reused
Internal UUID01a0ae82-5c46-7b2a-aca6-02414b34109c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050247
StatusPUBLIC

Content hashes

Canonical text702b72a2dc26fa009cbe1b0211fc3e48e551a4f70c3f846006c0d83bd141e457
Markdownb49d05151f5fd06e294a7fac19f44612634354db57d843ebf7707b4c788ede9c
PDF
Publication page65052cc11b79d8e6377826ba127db6d1e8e721599d8059e4e7f15136de289e8b
Manifest0e948f06779bdea8bfe39cd3f8b0253dd2f15faa856358db05ce51a5655ac0ba

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
SignatureY2vkrb6Y7QwluBEByk7g7a7rx85mOxPQNqP1mRdUt7UfKWHBRPqWTZ3bzzDV8F5JVGDNYfFx///JO7JeAFYHAg==
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

2026-09-17T11:01:14.753648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050247
observed 65052cc11b79d8e6377826ba127db6d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:14.735625ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050247/manifest.json
observed 0e948f06779bdea8bfe39cd3f8b0253d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:14.678036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050247/publication.md
observed b49d05151f5fd06e294a7fac19f44612...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:14.631379ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050247/publication.txt
observed 702b72a2dc26fa009cbe1b0211fc3e48...
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.