OpenTechnical

OT-2026-000020115

Publication integrity record

Foam pad vacuum gripper, four zone face, three stage ejector, pulsed blow-off before 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-2026-000020115) never changes.

Identity and time

Publication numberOT-2026-000020115 · never reused
Internal UUID01a0ae6f-4378-7ab5-9f10-de4d5ad16584 · 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-2026-000020115
StatusPUBLIC

Content hashes

Canonical text1d09d8396ec3512210b538724516a09217581c860c082dc3fca544edbab2c3c6
Markdown5e453b9686a6287ee853537a4f208a6e9b5d67cd624365e111d1e56a631600e2
PDF
Publication page760885dc3a4ef695b6f7f7c21313cf9ad49930b09bac5c431017d7e74f9ab02b
Manifest2c215e93dfc8364f3b90edf5413d61a43cce15e44671f011fe0d402647d66023

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
SignatureSnU09FIWPcgvmcBfRkMCYwjtxAD7kQhLMSvXmtR65DouqKSIG5GInuu7af9p7Zr+LW37yDKN1DbbGLoOCiItDQ==
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

2026-09-17T11:56:25.060660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020115
observed 760885dc3a4ef695b6f7f7c21313cf9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:25.041188ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020115/manifest.json
observed 2c215e93dfc8364f3b90edf5413d61a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:25.020224ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020115/publication.md
observed 5e453b9686a6287ee853537a4f208a6e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:24.999077ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020115/publication.txt
observed 1d09d8396ec3512210b538724516a092...
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.