OpenTechnical

OT-2026-000078774

Publication integrity record

Single bellows cup vacuum gripper, three stage ejector, vented after 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-2026-000078774) never changes.

Identity and time

Publication numberOT-2026-000078774 · never reused
Internal UUID01a0ae95-ccbc-79d0-9e2f-f68f2f2c542d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078774
StatusPUBLIC

Content hashes

Canonical textbf8533b37c8cb06afed11db3f6a78c135b06d267e36947f517d46cec72ece0b9
Markdownddd39be275b79bc041aec8cf03545783b93736db4848d8e94a3f318dbf0753dd
PDF
Publication pageb03fee989e511988300d3d819fb9f04c48633372b318311dd4ea1b67591ff0d2
Manifest6c5af67e543dc8d02ad58ce0055193a4324baa9053bfa6c02fe040444fd56eac

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
SignatureXxTWVNeX79uzuPBQ8uaYVlJPl3LhcpYyGOzRFa6bBDkfG0sZywcQsrbVbqflOQmp5hTcQ4UldvW8ugV0ofSrBw==
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

2026-09-17T10:05:33.705145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078774
observed b03fee989e511988300d3d819fb9f04c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:33.687361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078774/manifest.json
observed 6c5af67e543dc8d02ad58ce0055193a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:33.669086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078774/publication.md
observed ddd39be275b79bc041aec8cf03545783...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:33.649878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078774/publication.txt
observed bf8533b37c8cb06afed11db3f6a78c13...
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.