OpenTechnical

OT-2026-000046195

Publication integrity record

Four cup 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-2026-000046195) never changes.

Identity and time

Publication numberOT-2026-000046195 · never reused
Internal UUID01a0ae7e-032c-7ca2-8bf0-b6874f9c7d1e · 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-2026-000046195
StatusPUBLIC

Content hashes

Canonical text3c47e2e135f79e92cd97eef720946903f7fda7a497ee52ef6ce030d47e045e63
Markdownd37a12b9acb084ea8d9e6a3a0040dcfc168df5262953159a9f724281529e8995
PDF
Publication pagec2cc5c848d060d7b039467b1f5d89408b1b99b6dd6596e503fb8c669804b1efe
Manifestaa74f4e6b4c7ca97f4db840a7db4b33cdcfef4563261e6b071a011b8c4f80acb

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
SignatureJDX89LvOltWeFpuWvlXm2KxNVe6U+5OM7s3Zj9/iKErKARd9KvKBm3ZqlCA54u/B11rrkcCRuksocTPVKP6GDg==
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

2026-09-17T11:09:12.514965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046195
observed c2cc5c848d060d7b039467b1f5d89408...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:12.493819ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046195/manifest.json
observed aa74f4e6b4c7ca97f4db840a7db4b33c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:12.474530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046195/publication.md
observed d37a12b9acb084ea8d9e6a3a0040dcfc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:12.454697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046195/publication.txt
observed 3c47e2e135f79e92cd97eef720946903...
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.