OpenTechnical

OT-2026-000030317

Publication integrity record

Six cup vacuum gripper, six outlet manifold, pump fed, manifold pressure sensor, sustained 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-2026-000030317) never changes.

Identity and time

Publication numberOT-2026-000030317 · never reused
Internal UUID01a0ae73-e501-7720-b4b0-9fc45be57a65 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:26.007257Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030317
StatusPUBLIC

Content hashes

Canonical text076af2caa956eb3f0eb7f1c573cab78de0538414ff6b14f4ae455920fbd303e8
Markdown772d29371597af299c3872691c5d745cfd31079e5f18c79a3e41cec949a83ceb
PDF
Publication pagee81fc4edd946d035d07896adbef0cef788ddff6f3c1ee92a71e50988569e26ec
Manifest778f152de64c4f32183ef90fafec4af7b04642b0fd3d5a6dfca5a185dda6a0a8

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
SignaturedfeEfEHNZVFqysY9Tfe+wCEtah/dTW0mUfUpRI0OiyqWriOjwin69n0bb/L2JDJiwVSEtPq8rjeEwKpUg0CLAQ==
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

2026-09-17T11:38:01.382621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030317
observed e81fc4edd946d035d07896adbef0cef7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:01.365673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030317/manifest.json
observed 778f152de64c4f32183ef90fafec4af7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:01.346930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030317/publication.md
observed 772d29371597af299c3872691c5d745c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:01.329292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030317/publication.txt
observed 076af2caa956eb3f0eb7f1c573cab78d...
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.