OpenTechnical

OT-2026-000013739

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, single stage ejector, pulsed blow-off before 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-2026-000013739) never changes.

Identity and time

Publication numberOT-2026-000013739 · never reused
Internal UUID01a0ae6d-8de9-7bcb-8862-83bfae809f11 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013739
StatusPUBLIC

Content hashes

Canonical text8e46d33d23c748d618aef6d1dcb66d69bb44e0d12f6947ca0f5d178129a2b1b2
Markdown9158a016588ffc4682a20c827e23432fff4ad36db683713ed5ea7aff64a3f6f6
PDF
Publication pagee5c190c469b00dc8c70c10b5333db591aa203df4385224a3a8e238289a4b7f3e
Manifeste39ca2e65cf8258b496964a2454f39d05578eef3b6cc1c0dc13003314d71f644

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
Signature5NchI3dUHCjDhdNTYkc+jG7PjPeWAV/A0/URD6AlMtG7tXKspYSkKag+zfhzLcABYocjkpnkNFEaLURuum98CQ==
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

2026-09-17T12:08:42.423110ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013739
observed e5c190c469b00dc8c70c10b5333db591...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:42.402749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013739/manifest.json
observed e39ca2e65cf8258b496964a2454f39d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:42.383646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013739/publication.md
observed 9158a016588ffc4682a20c827e23432f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:42.364293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013739/publication.txt
observed 8e46d33d23c748d618aef6d1dcb66d69...
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.