OpenTechnical

OT-2026-000049648

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, pulsed blow-off after 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-2026-000049648) never changes.

Identity and time

Publication numberOT-2026-000049648 · never reused
Internal UUID01a0ae81-8fee-7614-8f3e-d9905ea855c9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049648
StatusPUBLIC

Content hashes

Canonical text96ac86c6ac3bed9331fff6db4b1c2e299d35188af379d4808c9703a00afd199e
Markdown52e0fbbd783e515a4c7c8288d4ff6edbf921afa42cbf306cd9ad28859a487093
PDF
Publication page159a2f4f668142248a3c36447e2a2d82662f51b7d3fac6dda7730cf1479f015b
Manifest23d70dfcea62921073b21ff79821e417dca8b9ae4eccb473030add57b24bb3cb

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
SignaturegHCqSU9/Po/F4hJp5X/J72+bdFNk/GQ25gUPSrVYm0AXJCb5gBIfkxNXSwhHkVDa/i3mWLGVB1SQbzND+VLvCA==
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

2026-09-17T11:02:38.740524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049648
observed 159a2f4f668142248a3c36447e2a2d82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:38.721725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049648/manifest.json
observed 23d70dfcea62921073b21ff79821e417...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:38.701053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049648/publication.md
observed 52e0fbbd783e515a4c7c8288d4ff6edb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:38.681467ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049648/publication.txt
observed 96ac86c6ac3bed9331fff6db4b1c2e29...
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.