OpenTechnical

OT-2026-000028531

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, three stage ejector, pulsed blow-off before set-down

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-2026-000028531) never changes.

Identity and time

Publication numberOT-2026-000028531 · never reused
Internal UUID01a0ae72-e2f8-7903-b95d-6986786fc72b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028531
StatusPUBLIC

Content hashes

Canonical text062da56f77b24b57e6b970ca414dcd9c5528839f92c1cdc0d5a61be911c1c999
Markdown4fe705dfed512ecff0599de3bc10a3d40f4f792987b89be38a64997f2b2987c6
PDF
Publication page2fda02fca2d3a5472ec10516a052a24075e11b9a5a05a72c76669828ce80df31
Manifest68731cd89a6b62c10ba51e51c05a576bce3636eb9ab2d4d1aec1eba3fe668c8c

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
SignaturepFGwW2r89kgWvH+kVi52GDdy1+4+2b4VN/MCba1wUtrX0K2Kh477ns0sK58Emljr0JVjN3GF5uv6RmOzi4YdCg==
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

2026-09-17T11:40:48.279091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028531
observed 2fda02fca2d3a5472ec10516a052a240...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:48.256409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028531/manifest.json
observed 68731cd89a6b62c10ba51e51c05a576b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:48.239797ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028531/publication.md
observed 4fe705dfed512ecff0599de3bc10a3d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:48.222088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028531/publication.txt
observed 062da56f77b24b57e6b970ca414dcd9c...
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.