OpenTechnical

OT-2026-000047783

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000047783) never changes.

Identity and time

Publication numberOT-2026-000047783 · never reused
Internal UUID01a0ae7f-c420-73aa-b6d5-e63a41ce6aae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047783
StatusPUBLIC

Content hashes

Canonical text03b0b88c16637f27d525ef133dc51a1097fecaff7c9059e0e94d90e3a356e484
Markdown985da5ed86805b855111443ffdc7d28b16e9a265d188c38d198393bb810f6f1e
PDF
Publication page70954b1d655fd5b4cdf0e4300462c03066f8e81b6df6c6d16aa21cfc4c733d55
Manifest21f99d85e2e81bd926e19e8eb9ea20751a2afb0b5d5894be662f5557894f6f2d

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
SignatureSNm8bIR3XGp9tbYz31neVt3GLb1l/IWkWmcnc0ZRq64CuX5uKiFMQc/kN4bm8UnhPj+dKpry6FGglgbbVG2DCg==
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

2026-09-17T11:05:40.727457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047783
observed 70954b1d655fd5b4cdf0e4300462c030...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:40.709859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047783/manifest.json
observed 21f99d85e2e81bd926e19e8eb9ea2075...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:40.693351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047783/publication.md
observed 985da5ed86805b855111443ffdc7d28b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:40.675531ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047783/publication.txt
observed 03b0b88c16637f27d525ef133dc51a10...
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.