OpenTechnical

OT-2026-000011662

Publication integrity record

Four finger electric gripper, 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-2026-000011662) never changes.

Identity and time

Publication numberOT-2026-000011662 · never reused
Internal UUID01a0ae6d-1940-7f4a-afd8-2dc344cce86e · 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-2026-000011662
StatusPUBLIC

Content hashes

Canonical textd8d36613be193dcb6b5990b62a645361f5d58c6696abb4a3c714dcfc34129293
Markdownbd96f609b8a6351f32779947d2b00e713616fa4b570ea183b83054be7ec40865
PDF
Publication pagecd6b9edfc4dfe22401de0dc26cc8ef8ca963664fa0781cedbec41ffb51a883b7
Manifestd0f6b9eb7e34c3dea944266bcbcc7318c9f3efd44a634d2b03264b220ee76391

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
SignaturesCr2+9knxmjVnBM83l4PleT7kvSav8tXnuUoLObxJnavVK4bNfX2dFUDMPJCQ9uPpUiP7yf9wC4jDp511eCJDw==
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

2026-09-17T12:12:15.193136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011662
observed cd6b9edfc4dfe22401de0dc26cc8ef8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:15.174040ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011662/manifest.json
observed d0f6b9eb7e34c3dea944266bcbcc7318...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:15.155714ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011662/publication.md
observed bd96f609b8a6351f32779947d2b00e71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:15.138552ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011662/publication.txt
observed d8d36613be193dcb6b5990b62a645361...
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.