OpenTechnical

OT-2026-000013559

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, 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-2026-000013559) never changes.

Identity and time

Publication numberOT-2026-000013559 · never reused
Internal UUID01a0ae6d-6fcb-7610-9fe4-12ba76d9872d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013559
StatusPUBLIC

Content hashes

Canonical text5f3fed246beb01f0a9328fde2e2650420b867a6c04f74fb8959628e5f7041509
Markdown0621ac230626a2285bacb98042e66d658532e5193303ab7cb55b2e3bb3b80187
PDF
Publication page172afb8ea92209e9fbaa1fc1df1542d2ff54697156ab7776dfa6a915f10fd43d
Manifest0bc4f08fc2c7731466d44fcd6993132a7297c5a2ca5f49692c8812dcf69a7999

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
SignaturevuaZvD16IZ9MVEMBCWRE22RrKt8FbZgAmTJa/jySzh9STxnyqS6u2oK7hJg4uATaUELPlMv/N1Put5qw8w+zAw==
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

2026-09-17T12:10:06.178475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013559
observed 172afb8ea92209e9fbaa1fc1df1542d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:06.157971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013559/manifest.json
observed 0bc4f08fc2c7731466d44fcd6993132a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:06.137340ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013559/publication.md
observed 0621ac230626a2285bacb98042e66d65...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:06.115770ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013559/publication.txt
observed 5f3fed246beb01f0a9328fde2e265042...
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.