OpenTechnical

OT-2026-000043841

Publication integrity record

Single cup vacuum gripper, single stage ejector, supply line pressure sensor, sustained 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-2026-000043841) never changes.

Identity and time

Publication numberOT-2026-000043841 · never reused
Internal UUID01a0ae7b-d677-7bd1-9c95-13b89041d3ba · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043841
StatusPUBLIC

Content hashes

Canonical textd5ee95d94f813698cdf7e23d6bce6ca16aa33a60a96b415ecb66c7b56c684f14
Markdownee1eee986d3ccb987f3d2fc285fadfd07ab780af1622adcde45084d376c83afc
PDF
Publication pagef26e2ed4ef5264819c4a9418b930084947d82481e532a5b64a78e2c72886881b
Manifestc849caea72c2dec9509b149c422c8be100ceb638a9fd5fbf6ea99683d5508b01

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
SignaturejyjphL0PYRF/e7EyStGjjZDFB9okJLi9y6htWneVRzj9UJjvP3bpakFIu6cJ0CUQkZfNldvaZaku9elqH7VqDA==
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

2026-09-17T08:44:45.489323ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043841
observed f26e2ed4ef5264819c4a9418b9300849...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:45.243430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043841/manifest.json
observed c849caea72c2dec9509b149c422c8be1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:44.994073ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043841/publication.md
observed ee1eee986d3ccb987f3d2fc285fadfd0...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:44.529877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043841/publication.txt
observed d5ee95d94f813698cdf7e23d6bce6ca1...
fetched by grabo-systems from 34.44.131.203, 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.