OpenTechnical

OT-2026-000104181

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, 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-2026-000104181) never changes.

Identity and time

Publication numberOT-2026-000104181 · never reused
Internal UUID01a0aea5-341f-7917-b58d-ec4ff8ff269f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:17.519068Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104181
StatusPUBLIC

Content hashes

Canonical textf8c8eab23fa853251d5673230d4a3f5d7177f58b3c5401b4db217b201d8239a2
Markdown1284e9664dbab1a92c2f356f50f465f13263c7c1fa8d0091d661258ec2373fd3
PDF
Publication page9ff8e9ddd08cea7c7f8d910e78d64479be651a106d484051b227aeaaa05133c6
Manifest08539a7baa5e74c9ce11701a78f89143769657b3158f1839aea363a56118f070

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
SignatureIYKhf1h/iTvp/066pshlORSnbVOY/sRe+2Src36M1mPvD7hEmRz/R2yFZngnHo9iaGpXeNSWzwyW1BcS3sYNCQ==
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

2026-09-17T09:20:16.546838ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104181
observed 9ff8e9ddd08cea7c7f8d910e78d64479...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:16.528593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104181/manifest.json
observed 08539a7baa5e74c9ce11701a78f89143...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:16.509875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104181/publication.md
observed 1284e9664dbab1a92c2f356f50f465f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:16.492312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104181/publication.txt
observed f8c8eab23fa853251d5673230d4a3f5d...
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.