OpenTechnical

OT-2026-000018501

Publication integrity record

Three cup vacuum gripper, three outlet manifold, plant vacuum fed, manifold pressure sensor, pulsed 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-2026-000018501) never changes.

Identity and time

Publication numberOT-2026-000018501 · never reused
Internal UUID01a0ae6e-b48a-7c44-b26e-eb69df01f97a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018501
StatusPUBLIC

Content hashes

Canonical text57e88e12a092faac4f67d979ab8f4c0620e3d1641c914f52a6add47cfe913972
Markdownf839d27a16c694610d0d811ecaa5e962e8d8bfc1923fe44d983ba29731ddf611
PDF
Publication page1948d1a2056c2401c970435abcfb1394c5d38d597b18edf1bed4afc9caa696fc
Manifestf67ddb0454ee6a5caace5faf20b7d7860b4d75829116a256339c84c8a9a7cc2c

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
Signature9atMSywjzh9oSIAzT0wfP31uORK98fm7D+zb67/SStx3OY4XiOsYsDKYIzx9Agkz2VyJw0bEVEy3yCmiEAOrBg==
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

2026-09-17T12:01:16.349495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018501
observed 1948d1a2056c2401c970435abcfb1394...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:16.332858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018501/manifest.json
observed f67ddb0454ee6a5caace5faf20b7d786...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:16.316829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018501/publication.md
observed f839d27a16c694610d0d811ecaa5e962...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:16.297428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018501/publication.txt
observed 57e88e12a092faac4f67d979ab8f4c06...
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.