OpenTechnical

OT-2026-000049447

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, plant vacuum 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-2026-000049447) never changes.

Identity and time

Publication numberOT-2026-000049447 · never reused
Internal UUID01a0ae81-8f7c-77bf-b5e1-2565cf187cfe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049447
StatusPUBLIC

Content hashes

Canonical text796e9634071363e1e2f9c6320edfbac98098b41cdfa3463c228912f0e2f90865
Markdownee3f27b8f397d5ce68af308fad0305b2b3668fc41a523bb8d651ad4339264d60
PDF
Publication pageac1014c127eb8a75f80154de9d155f5bcaf21f1f2b464875b3e47e3e9a8b4a93
Manifestb2defec05545b6c9357f5117a1812e65565a8904c33bea4a6edd691dc81e3d19

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
SignaturehMYUA1eVq+UQcbSK77SylhL+KFu+WNQkxFfyXxnhIaCRl+nwZTNYSxsWf8NdnJnyTfLvRDy0CTEeNO6n6Qp1Dw==
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

2026-09-17T11:02:16.974429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049447
observed ac1014c127eb8a75f80154de9d155f5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:16.955965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049447/manifest.json
observed b2defec05545b6c9357f5117a1812e65...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:16.935645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049447/publication.md
observed ee3f27b8f397d5ce68af308fad0305b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:16.916477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049447/publication.txt
observed 796e9634071363e1e2f9c6320edfbac9...
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.