OpenTechnical

OT-2026-000091821

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, pump fed, pressure sensor per zone, 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-2026-000091821) never changes.

Identity and time

Publication numberOT-2026-000091821 · never reused
Internal UUID01a0ae9d-43ba-711f-bafe-ded09dbb674a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091821
StatusPUBLIC

Content hashes

Canonical text160f5cc36e83468ba61183b4778d09bd4671ed896e7f533a69f3282067edb468
Markdown96ba3aae8cb0d5bf893b3542712d35b8a091d63f48ed0905b2b5e7f9da4aaed8
PDF
Publication pageed73feb680cfb5b8dc2d45bc3f5f8467d6b53ebe52df8a98eca87c92ebdf8b53
Manifest6c9821c95b8ccc615375898e0edc6b2d89a1194312cd98060627a85847b49698

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
Signaturef7I8lfjiPjCc567oEyaEvw+IKpa9H+KfT+9pQjcGK1VFrg5YVfbsViyFdLm5oMweNQoXz2L0Xzng4C9Nnss1Cw==
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

2026-09-17T09:42:44.081605ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091821
observed ed73feb680cfb5b8dc2d45bc3f5f8467...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:44.064716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091821/manifest.json
observed 6c9821c95b8ccc615375898e0edc6b2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:44.046162ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091821/publication.md
observed 96ba3aae8cb0d5bf893b3542712d35b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:44.027766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091821/publication.txt
observed 160f5cc36e83468ba61183b4778d09bd...
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.