OpenTechnical

OT-2026-000056056

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, sustained blow-off after 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-2026-000056056) never changes.

Identity and time

Publication numberOT-2026-000056056 · never reused
Internal UUID01a0ae87-0a4b-7f2d-9239-cecbc09bb08d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056056
StatusPUBLIC

Content hashes

Canonical texta3fda098d11e4da67709cf21127dae4c389aa3a51f8dfd82d7b0375a208a8fa5
Markdowna2cb9346d7e5a6b5a9d0ebd0346f63c119b0824b42479e13d03a651019979924
PDF
Publication pagea30db05c9520bcd3bfaf3fe80e4a64c4b8acc7aabfd205380d45b041dbe30a87
Manifestf0b49a840de1ff3bf605df7382fda1e02edbaf242fb029850ab20a421533fbfb

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
SignaturejlbfewNh2jNdsOxEc0pYjaOKc2uawPV5n6V2wezZYLHoorIi45Hse6b5N/vVPE0x5miYnuUXMaUJFkbukDxfAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:35.456413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056056
observed a30db05c9520bcd3bfaf3fe80e4a64c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:35.437315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056056/manifest.json
observed f0b49a840de1ff3bf605df7382fda1e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:35.418125ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056056/publication.md
observed a2cb9346d7e5a6b5a9d0ebd0346f63c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:35.399556ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056056/publication.txt
observed a3fda098d11e4da67709cf21127dae4c...
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.