OpenTechnical

OT-2026-000004558

Publication integrity record

Vacuum cup gripper, six outlet manifold, ejector fed, contact triggered on the face

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-2026-000004558) never changes.

Identity and time

Publication numberOT-2026-000004558 · never reused
Internal UUID01a0a91b-eac5-7bde-a508-7a6892139bad · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:26:14.216484Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004558
StatusPUBLIC

Content hashes

Canonical text28371b72ad340a832c0e0d6a0fe9dc78678b60189ae958cfc7b7ed47139d5a1c
Markdownfe4db430929e0834b0701b840e2c4f5d551d3eea5f0637e2e65cc809b55e0446
PDF
Publication page00a4456666abc04d1fb54e9cb08226994978d82b395c2c059cd2e1ba3827edad
Manifest99b6be295aad51b5b905155bbd5f1f5ee11e7b261049dec4236f128617cc8f89

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
SignaturelbMhUq2Rb5WwIcHnFeUM/xVgRdPO9J87AiNA2itopLXIlkdAIFeqMMhblysJVNdAU4Dp6+bbCFruNFbP8KUdBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:30:14.933585ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004558
observed 00a4456666abc04d1fb54e9cb0822699...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:14.918511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004558/manifest.json
observed 99b6be295aad51b5b905155bbd5f1f5e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:14.907509ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004558/publication.md
observed fe4db430929e0834b0701b840e2c4f5d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:14.896234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004558/publication.txt
observed 28371b72ad340a832c0e0d6a0fe9dc78...
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.