OpenTechnical

OT-2026-000019031

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, pump fed, 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-2026-000019031) never changes.

Identity and time

Publication numberOT-2026-000019031 · never reused
Internal UUID01a0ae6e-d523-7fce-a802-22d8eb118f14 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019031
StatusPUBLIC

Content hashes

Canonical text0c0c1b44132dca320e1274a0329444e372da93eb77c396696644bd37d3c4afb0
Markdown90bf1ff2cf728e9e466eba362ea18c1a191274461228c2a9b8c29fc492a03c5e
PDF
Publication pagee25fbfeb35f0815f3c3c70d409be34bb69552d9195e26a5b20ffb08b7bd85c6a
Manifest6eda97f774cac6cbb54995657c281fa56123dec643b423b15d764fd0245be5a6

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
Signatureau7RcE3lc6aZATdeWDn/yL3LFK/semLqFKwpNRB/t/R8Gfex9YbIEqk12qoFystsae3TBKkbgzS7NuduP3kSBQ==
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

2026-09-17T11:59:43.242481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019031
observed e25fbfeb35f0815f3c3c70d409be34bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:43.225380ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019031/manifest.json
observed 6eda97f774cac6cbb54995657c281fa5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:43.206920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019031/publication.md
observed 90bf1ff2cf728e9e466eba362ea18c1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:43.189139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019031/publication.txt
observed 0c0c1b44132dca320e1274a0329444e3...
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.