OpenTechnical

OT-2026-000043621

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, sustained blow-off after 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-2026-000043621) never changes.

Identity and time

Publication numberOT-2026-000043621 · never reused
Internal UUID01a0ae7b-92d0-775e-b507-5dd4c4aff18d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043621
StatusPUBLIC

Content hashes

Canonical text9ed0bfbe4415db0c05b9cda501ae3994469a31cab8353809e7e0fbe62a769e0b
Markdownd58b0bd651769f2674baf3faa60a44c4a0a0a9cd301e25a3bb961f231dfa0b62
PDF
Publication page20a5de74ec4030248f37a65f7473822a38a7bf244199aded3d871942e23eebf6
Manifest77892034414b4c66236a2774d5354d1df830aa4e00b8ab942794469a7b5fc120

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
SignatureWkyYLmPM+ygdxpNP2VguJh1EzfXR2AH+2+O6/gGlwZhGlpNTz3aK5kcbaAQg9GQVzDGPOpaJuGsAtIozMr/XAQ==
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

2026-09-17T11:13:05.428682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043621
observed 20a5de74ec4030248f37a65f7473822a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:05.408952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043621/manifest.json
observed 77892034414b4c66236a2774d5354d1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:05.389354ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043621/publication.md
observed d58b0bd651769f2674baf3faa60a44c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:05.369267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043621/publication.txt
observed 9ed0bfbe4415db0c05b9cda501ae3994...
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.