OpenTechnical

OT-2026-000100547

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000100547) never changes.

Identity and time

Publication numberOT-2026-000100547 · never reused
Internal UUID01a0aea3-66f1-7b06-8889-6a9cbf280c74 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:19.463543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100547
StatusPUBLIC

Content hashes

Canonical text246b03036ffeb049af2a3b0f2d55945881243d0c8bb1c7272c89ee6b57f6ec16
Markdowna0d7cf8413c083227f3f8750767a5411acbc7a8ecde4f3be998f6a09f8d83ed1
PDF
Publication page362a6471dc2ec45827c0fac9efbf561901a153d0306c3f91ed0047ba2c43227d
Manifest928d55f3af7fe9a8fa464ce050ff136dcd203b5db230e4ab3352c3e87609b6ab

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
Signature0DfqUAIlgFtI4bT1gVvo/XFMYT05JuhjttbPEER3RyAC41PNNtleD9bxl6STUasbQhha+YOQFiEE8VTXsmDECA==
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

2026-09-17T09:27:19.173117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100547
observed 362a6471dc2ec45827c0fac9efbf5619...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:19.155846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100547/manifest.json
observed 928d55f3af7fe9a8fa464ce050ff136d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:19.138069ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100547/publication.md
observed a0d7cf8413c083227f3f8750767a5411...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:19.120340ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100547/publication.txt
observed 246b03036ffeb049af2a3b0f2d559458...
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.