OpenTechnical

OT-2026-000030933

Publication integrity record

Single cup vacuum gripper, common isolation valve, two stage ejector, pulsed blow-off after 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-2026-000030933) never changes.

Identity and time

Publication numberOT-2026-000030933 · never reused
Internal UUID01a0ae74-3fb6-7b9e-b1d7-0b41406e73d3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030933
StatusPUBLIC

Content hashes

Canonical text0bc4a7c7f554a37039b7186606ab2a417d67ba90faecf8a0539ebe63794e568d
Markdown027931faad8af8de26f7c402a1b1c605541b087dbf9dfca315f75160fdfd01cb
PDF
Publication page91d0c35587817e2e9a89ec98d1ee3370650ed21dc32f98d33de145be098e0516
Manifestecdad82cad029355378d3fdddf8bf2c9ce97da51d6699e2a6be586239e452a42

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
SignatureDoX97nH5cl4otDC2FcYh4AxQCbliG6VhPFtrxw8FK9KmI/U28fNzaCtlnBjlRVBYbgupyP9YAsRW3H+2nRkTAw==
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

2026-09-17T11:36:55.716860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030933
observed 91d0c35587817e2e9a89ec98d1ee3370...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:55.698215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030933/manifest.json
observed ecdad82cad029355378d3fdddf8bf2c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:55.679890ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030933/publication.md
observed 027931faad8af8de26f7c402a1b1c605...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:55.661037ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030933/publication.txt
observed 0bc4a7c7f554a37039b7186606ab2a41...
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.