OpenTechnical

OT-2026-000030771

Publication integrity record

Two bellows cup vacuum gripper, two zone face, 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-2026-000030771) never changes.

Identity and time

Publication numberOT-2026-000030771 · never reused
Internal UUID01a0ae74-3fb4-7b15-88db-2123d8234627 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030771
StatusPUBLIC

Content hashes

Canonical textea5447f8f4c9c216d745112c28df3888556b41e51e9f8bb462ae4e32e4c67ea8
Markdown252545f4a3937add86ad4f1aa137c5a348a04355776f556689660aab8d0b135f
PDF
Publication page78305ef29f6715f19a2e51756f8345666a367f25227c7bd2cde2675b847b087e
Manifest20fc2d91dd471579493c0f1117b26c49faf7fdc540d8397a53b050242acb86f1

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
SignatureN7bXZegIXvgXov1T5JCMMAuxUB709oSYujDN/lJ7kq8sPk8OqrR5vmdx2oLFdlmDaeHBOj6yeuulXKRhYP4gAw==
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

2026-09-17T11:36:43.671733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030771
observed 78305ef29f6715f19a2e51756f834566...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:43.655220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030771/manifest.json
observed 20fc2d91dd471579493c0f1117b26c49...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:43.638309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030771/publication.md
observed 252545f4a3937add86ad4f1aa137c5a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:43.620041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030771/publication.txt
observed ea5447f8f4c9c216d745112c28df3888...
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.