OpenTechnical

OT-2026-000004682

Publication integrity record

Bellows cup vacuum gripper, four zone face, common isolation valve, ejector fed, contact triggered

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-2026-000004682) never changes.

Identity and time

Publication numberOT-2026-000004682 · never reused
Internal UUID01a0a920-025c-7f59-95ed-5dbfc872cd89 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:30:42.401607Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004682
StatusPUBLIC

Content hashes

Canonical text566427d0979580bbf9079e0452ff47fbd94f52451454e361d947a9f5bab5bcb8
Markdown5dc10ed69a9e1afdf797dd3e5c356b503aad6d02610db650d92cebc9b22bdd19
PDF
Publication page5e867faee2ab39201adcd39c4a34b073676efdf30266c946dde1c747e96257df
Manifest827fd9172eb1e49198f17da8bcd10588d5fcdf133bd2cfe738d3d7da6347f350

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
SignatureGiwVkA5PloRGD3imDdInu12yPiJ6z6Gx1nhQQaa8AGyJNJgJbLWpFqAly/AqiwFmIXSsdMWyAM4qG9FtR8DsBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:30.121679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004682
observed 5e867faee2ab39201adcd39c4a34b073...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:29.984001ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004682/manifest.json
observed 827fd9172eb1e49198f17da8bcd10588...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:29.971151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004682/publication.md
observed 5dc10ed69a9e1afdf797dd3e5c356b50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:29.958227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004682/publication.txt
observed 566427d0979580bbf9079e0452ff47fb...
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.