OpenTechnical

OT-2026-000012939

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, two stage ejector, 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-2026-000012939) never changes.

Identity and time

Publication numberOT-2026-000012939 · never reused
Internal UUID01a0ae6d-5564-721b-9a83-ba4bbf282e35 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012939
StatusPUBLIC

Content hashes

Canonical text2c67f21494a03103f8536ac9f78c61bd5d95d6b405ac6029ff852aeac9048dab
Markdowna8287ac21c6e83283f95ac170bba3c5abadda0b79347b2a9a74d6c0ce45ba312
PDF
Publication page8df78b51bfbe4e4a53e9175361c66efb6fcd3834388a21cedec15dfba67746db
Manifesteeeea6aef9d1b483389ac53f43d9dbe5a9b53985c7847596e2105dd80218bb1e

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
SignatureNssCFVvruQybOTk9cOI5doFvuXvOa9CWSWi6ef4t27sOX9h3V+uyMKPmQ/k6IMymH5z24Pu/WzCX5276uJFlDw==
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

2026-09-17T12:10:44.516898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012939
observed 8df78b51bfbe4e4a53e9175361c66efb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:44.497761ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012939/manifest.json
observed eeeea6aef9d1b483389ac53f43d9dbe5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:44.479640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012939/publication.md
observed a8287ac21c6e83283f95ac170bba3c5a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:44.456970ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012939/publication.txt
observed 2c67f21494a03103f8536ac9f78c61bd...
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.