OpenTechnical

OT-2026-000079420

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, vented 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-2026-000079420) never changes.

Identity and time

Publication numberOT-2026-000079420 · never reused
Internal UUID01a0ae96-0b91-737f-b611-3eaffab96538 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:44.101434Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079420
StatusPUBLIC

Content hashes

Canonical text91dc1071bd66667add6bc007dbf1cd887d6b5cffc6e9ac206e30161a9a465ca8
Markdown39f8af7c484e46e3ddd824a597e5bfb6481a195e05167274872ed2df4a9b99b6
PDF
Publication page8d3a10d071ce1d3fa445a06e71d984b02e655b4de529794377d58b15b22929c1
Manifest4ff24f03a8196e50352ff26c7f3136565b79357ba1bdb09509831940dab5a1dc

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
SignatureJhfjGidBa362yfUAP2c76CgmOA35a8lxLK/YExk2+qyrtQ/dPWquxWf0QQ4zs65OHG/qTeqGohYelDm5hAJSDw==
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

2026-09-17T10:05:02.727573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079420
observed 8d3a10d071ce1d3fa445a06e71d984b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:02.710542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079420/manifest.json
observed 4ff24f03a8196e50352ff26c7f313656...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:02.691068ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079420/publication.md
observed 39f8af7c484e46e3ddd824a597e5bfb6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:02.673017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079420/publication.txt
observed 91dc1071bd66667add6bc007dbf1cd88...
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.