OpenTechnical

OT-2026-000012047

Publication integrity record

Two cup vacuum gripper, two zone face, pump 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-2026-000012047) never changes.

Identity and time

Publication numberOT-2026-000012047 · never reused
Internal UUID01a0ae6d-1943-78ab-9824-3fc7f8f50804 · 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-2026-000012047
StatusPUBLIC

Content hashes

Canonical textbd2e31c59ce4262489c05c623527d78496e8877c351abe8752f8b7312803c4be
Markdown3d740ee01a5b541caad604c11769ecd16ddf3cdc9406502661c96d685cac9a8f
PDF
Publication page3d11e7afd7facd1869050895508da5e6a33a622dd8b5b0331d2abfc84cf24d2b
Manifest3663737f34b3455b4e602430c10460cdc346d18848dbf3f6337c661334c40050

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
SignaturefEm0C+9Gevhbu9tsWoHoDbyleD/Hr3622e7xMcYN58Wd032Rvipj5N5HpZ9zsyYBb9nqsRF/HqhvH3nyYQRJBw==
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

2026-09-17T12:12:55.455484ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012047
observed 3d11e7afd7facd1869050895508da5e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:55.436086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012047/manifest.json
observed 3663737f34b3455b4e602430c10460cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:55.418624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012047/publication.md
observed 3d740ee01a5b541caad604c11769ecd1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:55.398734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012047/publication.txt
observed bd2e31c59ce4262489c05c623527d784...
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.