OpenTechnical

OT-2026-000028846

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, sustained 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-2026-000028846) never changes.

Identity and time

Publication numberOT-2026-000028846 · never reused
Internal UUID01a0ae73-2a9c-7562-9e7a-ce458b468ddf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028846
StatusPUBLIC

Content hashes

Canonical text143c522f435d9436469a810229415354ba51ae423d2c03cab68f24f9d022ede5
Markdown42eca39c6d77ef186afec814798a6f8bb324ff2fb6aabb1112ccf9b76801fe0b
PDF
Publication pageb0dce0ea9a0651ee5fe625b8479e9169b690a3a3649864c31d8f380b962d8382
Manifest28135748e614aa2bbb7f345cb8e25b85092d252f50f64be56160a2ef328cb978

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
SignatureklLQlZkqDFcM1o402kcTOStdT1CMyZ9UPU+Y5BV4dxToCt+leniAcdbi0WQtJn/IqQxYeCngSIBQIeSpHznwDA==
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

2026-09-17T08:20:08.697840ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028846
observed b0dce0ea9a0651ee5fe625b8479e9169...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:08.679648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028846/manifest.json
observed 28135748e614aa2bbb7f345cb8e25b85...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:08.538242ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028846/publication.md
observed 42eca39c6d77ef186afec814798a6f8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:08.516274ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028846/publication.txt
observed 143c522f435d9436469a810229415354...
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.