OpenTechnical

OT-2026-000029133

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, supply line 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-2026-000029133) never changes.

Identity and time

Publication numberOT-2026-000029133 · never reused
Internal UUID01a0ae73-2aa0-7afc-ab99-dcff76591277 · 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-2026-000029133
StatusPUBLIC

Content hashes

Canonical text21acf86c611728a2cc5f9c801bda1e5c6b22debeb96b7282244c74ca8e880abb
Markdown9c2c111688af6f5479ffc2c23e4d3fb30ef6e90cee9f462a1cf03e0ea2411576
PDF
Publication page5c1d81ed08aecfe231ef5b94a1d5f42d76832fb8908b08b1e11f523cbae98fa8
Manifest67f609ef6d1189ba73068a73c422c36e3c93f6886a2aebe97b5e4bbf5f5c7f74

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
SignaturefHJSCDC1CZkccqP9jmwxsdP2+rj84zJbOu8/arV55nhFzTeNe6caN8zMGN3k7VsbfnFrxq8xMnOSEWQaoBaqDg==
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

2026-09-17T11:39:37.033540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029133
observed 5c1d81ed08aecfe231ef5b94a1d5f42d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:37.017778ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029133/manifest.json
observed 67f609ef6d1189ba73068a73c422c36e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:37.003051ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029133/publication.md
observed 9c2c111688af6f5479ffc2c23e4d3fb3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:36.986203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029133/publication.txt
observed 21acf86c611728a2cc5f9c801bda1e5c...
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.