OpenTechnical

OT-2026-000015860

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, pulsed 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-2026-000015860) never changes.

Identity and time

Publication numberOT-2026-000015860 · never reused
Internal UUID01a0ae6e-0c4c-7501-9d87-fcefa505b6fe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:02.846253Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015860
StatusPUBLIC

Content hashes

Canonical text559bd60b479d1aed7fd2ccf3432cc131a6c880a28bd46f367c5edd273c6bf120
Markdown1218af3a70618211c622a8abad393bd3ca7e1e61a9852011c087aae5706f9e1c
PDF
Publication page87800ba46e3c3fdc8c6d4683647808e8d4c4bca9037661383e7f8e400d4c5333
Manifest0b8d5b46740640fa2322f88c922ca4ba31148e05d99b418dfc07947c0767c843

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
Signature/+B7RcX13VnUdzB/Nc18allMAsUVCe1Rz8OewA2HB0Gc03XAtxdURP1XF48VFJEBLg0xcpkbGflL0QBCdgXbAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:05:18.129661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015860
observed 87800ba46e3c3fdc8c6d4683647808e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:18.109646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015860/manifest.json
observed 0b8d5b46740640fa2322f88c922ca4ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:18.090071ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015860/publication.md
observed 1218af3a70618211c622a8abad393bd3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:18.071616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015860/publication.txt
observed 559bd60b479d1aed7fd2ccf3432cc131...
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.