OpenTechnical

OT-2026-000028513

Publication integrity record

Six cup vacuum gripper, six outlet manifold, two stage ejector, 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-2026-000028513) never changes.

Identity and time

Publication numberOT-2026-000028513 · never reused
Internal UUID01a0ae72-e2f8-7a74-a3d1-43b69ab2c273 · 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-2026-000028513
StatusPUBLIC

Content hashes

Canonical text4c61f593b228a5d18d45352cdc9936cf4141196cc6cb7d6c1317a21e17ffa968
Markdowna35a0cbe1aa4af188d78c6447037f3ef5667e516e08be6d626eae6a807da6f76
PDF
Publication page1b530a0c67917952b9a4ff4d3e74c666d5133d91e31955bb3f0f961be57d7867
Manifest79e1df326db1583fb6fdf16791de7818e0adeecccc51acfdfacc3e90953f512b

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
SignatureQVuNCCJjKi11Ml3rrR2xaQT4ZF/zyR9OoJELgLgLXZSn5GXBqzaFthdhSGXcUDXSSUvWfEfZW+1TqnCVdiQXDA==
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

2026-09-17T11:40:46.787834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028513
observed 1b530a0c67917952b9a4ff4d3e74c666...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.770998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028513/manifest.json
observed 79e1df326db1583fb6fdf16791de7818...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.755157ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028513/publication.md
observed a35a0cbe1aa4af188d78c6447037f3ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.732374ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028513/publication.txt
observed 4c61f593b228a5d18d45352cdc9936cf...
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.