OpenTechnical

OT-2026-000101981

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, plant vacuum fed, pulsed 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-2026-000101981) never changes.

Identity and time

Publication numberOT-2026-000101981 · never reused
Internal UUID01a0aea4-50f1-75c4-b65d-2c798e11606c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:19.361569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000101981
StatusPUBLIC

Content hashes

Canonical textbf090dd4c8a17cd0d64e0251499122ee5652acb728f0dd0d66d7c302e60838f4
Markdownbc30e606a53d5f982ac8885e71ee2b0672b15326a4c83cc93493c3bc9eb6debd
PDF
Publication pagee5d239a4d182241b3a77dcb2841605f6aa21b072ecfec1ee85bc19ccc83aeeaa
Manifest109240d5580488e82e453cce03fc80f32a9902f941468add1574c7ab882541ef

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
SignaturerbDTl1urMr9vQYew8snf3dVT5O7zx3raCtp8uhoz7pLLXNaQjNZk2uZDBOXTuVEqGmrdsq0MKVfK6Y2UB8SADw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:25:06.255440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101981
observed e5d239a4d182241b3a77dcb2841605f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:06.238473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101981/manifest.json
observed 109240d5580488e82e453cce03fc80f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:06.218957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101981/publication.md
observed bc30e606a53d5f982ac8885e71ee2b06...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:06.200984ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101981/publication.txt
observed bf090dd4c8a17cd0d64e0251499122ee...
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.