OpenTechnical

OT-2026-000031789

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, pulsed blow-off 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-2026-000031789) never changes.

Identity and time

Publication numberOT-2026-000031789 · never reused
Internal UUID01a0ae74-bad1-77a6-b34d-c576fc4f076c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031789
StatusPUBLIC

Content hashes

Canonical text0641526fe415e3fc872387d9e7b3ffb794b09dbe3fa08a7b9e81c1bb73c96de6
Markdownc1cef5b3b930a599a3b98b86428d9335ebe0c0f96416d2104500948e67390ac2
PDF
Publication page3682a11126827261e316a622f18e5614fe10382af1f6368aee0c22bd6dac27d0
Manifest1026a5b11a75a8ddf704759f6665714b1215909a5650b3364600b76ca666abed

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
Signaturef01gVe32up1Ra2imIzggN3IVmN/ZXK+3D5r3kK5OvYU9AiZQ0UnnGtvzZsEeZTxhkg51sDOcX4bjBu4n2qjPCg==
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

2026-09-17T11:34:55.141256ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031789
observed 3682a11126827261e316a622f18e5614...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:55.124553ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031789/manifest.json
observed 1026a5b11a75a8ddf704759f6665714b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:55.107735ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031789/publication.md
observed c1cef5b3b930a599a3b98b86428d9335...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:55.089829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031789/publication.txt
observed 0641526fe415e3fc872387d9e7b3ffb7...
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.