OpenTechnical

OT-2026-000042828

Publication integrity record

Single bellows cup vacuum gripper, two 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-2026-000042828) never changes.

Identity and time

Publication numberOT-2026-000042828 · never reused
Internal UUID01a0ae7a-c0d0-7480-9e3d-fdae2700fcc5 · 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-2026-000042828
StatusPUBLIC

Content hashes

Canonical text57b9985f269cc202434755da1e00fc881133b34e9bdbd99699e164009005977b
Markdown16f445926067d9d15e3d96d548b5a1558d8698d171a6225d604489f68f9ae4dd
PDF
Publication page5d7a77385e1c2be17319a78825711550841600067c7d312b20ac11b55eca92c2
Manifest96a82163c72e448cf0387ab7ec2de25f5cc88f491638b92f1b9f243208f794f5

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
Signaturez8FXVLCjQreh0L5TTe+Jv0zJrmocUxxGNTYPXHvkI84Rib565d1k+ZSFjCCpjRaHBz9oC/pIAtQYhZ1KPt9VCg==
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

2026-09-17T11:15:18.541042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042828
observed 5d7a77385e1c2be17319a78825711550...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:18.523006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042828/manifest.json
observed 96a82163c72e448cf0387ab7ec2de25f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:18.504244ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042828/publication.md
observed 16f445926067d9d15e3d96d548b5a155...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:18.485557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042828/publication.txt
observed 57b9985f269cc202434755da1e00fc88...
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.