OpenTechnical

OT-2026-000028252

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, sustained blow-off before 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-2026-000028252) never changes.

Identity and time

Publication numberOT-2026-000028252 · never reused
Internal UUID01a0ae72-e2f4-7c42-a21a-30da9b91ce67 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028252
StatusPUBLIC

Content hashes

Canonical textb7bf11374f2d905813b3f5f1daf772c02cb6b2e930fba998438ddbb55cb8495a
Markdown992359cc31255cff9e0be429facfb2207590babb450ca5b9d8e14f20b28bedf6
PDF
Publication pageba2643b9f6e6edf33ce5ab8438f562590a1a5ffd9c8b47ede89b706563ce3c15
Manifestb87017d440e3ae12635801fa34d84241dfccfab29cee6ee245bbc170b215e0c0

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
SignaturemP7MyZtrXkVwQh+JldmNcCe/cr4V3EHme0l0b10z8RTSWtan/Et5n3BTscBEAig7/o8Gu3/kG9OjbuWbvuXhBQ==
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

2026-09-17T11:40:06.532610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028252
observed ba2643b9f6e6edf33ce5ab8438f56259...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:06.511352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028252/manifest.json
observed b87017d440e3ae12635801fa34d84241...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:06.451055ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028252/publication.md
observed 992359cc31255cff9e0be429facfb220...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:06.381555ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028252/publication.txt
observed b7bf11374f2d905813b3f5f1daf772c0...
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.