OpenTechnical

OT-2026-000090303

Publication integrity record

Foam pad vacuum gripper, two zone face, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000090303) never changes.

Identity and time

Publication numberOT-2026-000090303 · never reused
Internal UUID01a0ae9c-4290-7b87-a58c-753c4768f30f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090303
StatusPUBLIC

Content hashes

Canonical text38a9b6495ed4ca68050cde2e89d93316a56bf758f99c03a2da662994201462b4
Markdown6f9db84666cf6b6b98c9d75b090176b8288ecc28ed9f8c103f1d9aebae73bb25
PDF
Publication pagef161fc7222a8268ea36c144d7aba054240dfa0f8b709f4bc4a8dd8f1bcb04406
Manifeste62714085091545fa858aaaa7da550cbad675945deaa30e4ad24786d48d4aa3e

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
SignatureWG747SBesA3MSxoJBeFlyVu+wc1s6wfc5rkXddQP4xLbMw7pxJRWiHg3QOt173Ox79uQsVOnxX2LI2iLPQr+Dg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:46:23.475987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090303
observed f161fc7222a8268ea36c144d7aba0542...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.457968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090303/manifest.json
observed e62714085091545fa858aaaa7da550cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.439462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090303/publication.md
observed 6f9db84666cf6b6b98c9d75b090176b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.417954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090303/publication.txt
observed 38a9b6495ed4ca68050cde2e89d93316...
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.