OpenTechnical

OT-2026-000020204

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, supply line pressure sensor, 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-2026-000020204) never changes.

Identity and time

Publication numberOT-2026-000020204 · never reused
Internal UUID01a0ae6f-4379-7501-88ee-b3fba0fb027d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020204
StatusPUBLIC

Content hashes

Canonical textd9357576abec2f574e4d40e01c7b1633095d4e2c1710456972ededef6b3c9152
Markdownf75ae2e0153ae180ef05a0833b8efacc08431b0f1c78a842673748d3a32587f7
PDF
Publication pagea73a32b60daabffd9c8d7921bc3978d6358d46d03df90e99296ef3b60729cdfa
Manifest02747b30861d2ae6f036f93bb0c42ba470db93ea26dbb96ae0ee4b77467035a8

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
SignaturerqAFy2wGFdj+yUboSWJG8F4S2/F2ydkVOgHF2xPx1PQ+1yf8DvDF1SZR9Qa2xR4nh67ZX1ygW2eb4G7Gc3ymCg==
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

2026-09-17T11:56:32.317636ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020204
observed a73a32b60daabffd9c8d7921bc3978d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:32.298010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020204/manifest.json
observed 02747b30861d2ae6f036f93bb0c42ba4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:32.280951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020204/publication.md
observed f75ae2e0153ae180ef05a0833b8efacc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:32.261961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020204/publication.txt
observed d9357576abec2f574e4d40e01c7b1633...
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.