OpenTechnical

OT-2026-000013197

Publication integrity record

Three cup vacuum gripper, three outlet manifold, 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-2026-000013197) never changes.

Identity and time

Publication numberOT-2026-000013197 · never reused
Internal UUID01a0ae6d-6fc8-708d-ab9a-943f86fc009e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013197
StatusPUBLIC

Content hashes

Canonical text966a164753bcee29c41b27be0385d8e93c21eefe69ccb54fcd6ec6275d575c72
Markdown84fc69e8960ac0f223e970cdf5193ef3651f36c1a65255244a56d78de569d1ab
PDF
Publication pageb12dc0945cd23317eff3df0d9f236ed4d1f8383b406207905313199325b8b1d2
Manifest13573713dddcc52f341d82e0995f11df03e24694e86963577d26a84c6dff559e

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
SignatureWOe5bEvSIwbMnq1ZsoDCqyQHw1AppK1kHGm/yrlNLb8C6d7JijcVIfKpn2AsoSDThWNYz/T7K+aK09K6OkiLCg==
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

2026-09-17T12:09:34.881626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013197
observed b12dc0945cd23317eff3df0d9f236ed4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:34.858062ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013197/manifest.json
observed 13573713dddcc52f341d82e0995f11df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:34.831772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013197/publication.md
observed 84fc69e8960ac0f223e970cdf5193ef3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:34.810255ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013197/publication.txt
observed 966a164753bcee29c41b27be0385d8e9...
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.