OpenTechnical

OT-2026-000042728

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, plant vacuum fed, pulsed blow-off 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-2026-000042728) never changes.

Identity and time

Publication numberOT-2026-000042728 · never reused
Internal UUID01a0ae7a-c0cf-7049-8e4f-5d998ff6298c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042728
StatusPUBLIC

Content hashes

Canonical text60f182d00589c4500a8f7497ed8addefbc0b17a2ce844290e93d0d838c98bfc6
Markdownd6ded2d03f81190e373ea1c8c08bb2dc397603bf4b130cda978406ff382ced0b
PDF
Publication pageec96a6a3cdc836dfe953b0e71cbc04a9edab5d21f431138d54ee1b6938f108a2
Manifestd6c9a94307bbed0438c41be68f67b98dc85714f9db75fca3ae6b9e52ed295307

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
Signaturebvs6BY2FdtdNasd6tp/MeklYLfoaC6czcwxBvXcOTpkGavs0DEYis6cuTV1DbV5+SVRT6a4aPUNKwnpVPt1nAA==
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

2026-09-17T11:15:10.165363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042728
observed ec96a6a3cdc836dfe953b0e71cbc04a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:10.145734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042728/manifest.json
observed d6c9a94307bbed0438c41be68f67b98d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:10.126326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042728/publication.md
observed d6ded2d03f81190e373ea1c8c08bb2dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:10.107933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042728/publication.txt
observed 60f182d00589c4500a8f7497ed8addef...
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.