OpenTechnical

OT-2026-000046171

Publication integrity record

Foam pad vacuum gripper, four zone face, 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-2026-000046171) never changes.

Identity and time

Publication numberOT-2026-000046171 · never reused
Internal UUID01a0ae7e-032c-721f-ba2b-75ee30f1bd6f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:31:29.080672Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000046171
StatusPUBLIC

Content hashes

Canonical text35c8835268f7b7cce22f02f170cd6dbb7ee11fa51437c1ba2f2630deee948419
Markdownb51712e5474f9da5e882690b743829e9081e0c2ed9cd37318171ad759d73ee91
PDF
Publication page0739a04cb52d87a4428d6c8a6ec647496d2fe2c75f47d4c379959ba2c0cd4b6d
Manifest4f75d53ea0ae523dc234f566f844e7c39efec64810627384b15be5b6a7ca8ecb

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
Signaturer4iALrqWbPzWGQhrEuqzph4j/+yrvE0oIJCI0WB05DAG6CZLg831Ncf0M055SMb9DP0YSMnyDo9FsUw4sdkHBA==
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

2026-09-17T11:09:10.581133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046171
observed 0739a04cb52d87a4428d6c8a6ec64749...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:10.562304ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046171/manifest.json
observed 4f75d53ea0ae523dc234f566f844e7c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:10.543578ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046171/publication.md
observed b51712e5474f9da5e882690b743829e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:10.524670ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046171/publication.txt
observed 35c8835268f7b7cce22f02f170cd6dbb...
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.