OpenTechnical

OT-2026-000011774

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, 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-2026-000011774) never changes.

Identity and time

Publication numberOT-2026-000011774 · never reused
Internal UUID01a0ae6d-1941-7cff-a5db-faa8398bef72 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011774
StatusPUBLIC

Content hashes

Canonical textb682832631a1791e03fa1640eb73a408b03a8bcbf26aa59d1a0faf89f87cc8f8
Markdowna3d68fce9b009c1b94e00afff6b4554acaff6082aa35261212780ae2c03321f5
PDF
Publication page6749ab5dd3f333544ca55216f282d746ce2a6f6b5d98a7d217de4c57b37c3a3f
Manifest21c1869fd580bf80c65ea6b6e4b236aebc98df0524f42e10f4e738f4445bc518

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
Signature9vSeGZYTtSZgs45BhxiLuC0sv/hMOKys1mtV0sjeBCHaAkANWCOfds79nw1rGEnHOjefdiXUA25Jop+PmY7iBA==
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

2026-09-17T12:12:29.394735ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011774
observed 6749ab5dd3f333544ca55216f282d746...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:29.376767ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011774/manifest.json
observed 21c1869fd580bf80c65ea6b6e4b236ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:29.356796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011774/publication.md
observed a3d68fce9b009c1b94e00afff6b4554a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:29.335027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011774/publication.txt
observed b682832631a1791e03fa1640eb73a408...
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.