OpenTechnical

OT-2026-000043121

Publication integrity record

Three cup vacuum gripper, three outlet manifold, 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-2026-000043121) never changes.

Identity and time

Publication numberOT-2026-000043121 · never reused
Internal UUID01a0ae7b-327a-721c-98d7-ae47ec60f637 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043121
StatusPUBLIC

Content hashes

Canonical text6d384784f32d536927101fc67be1eb35d63757729656f93885d61246fc3525ba
Markdown60326fa4be41d9c05287cbd922e66289f5824b0e54a61a6ed941f0e8629d68e2
PDF
Publication pagee703280c8206317343c7685d19b0e031bc4c11371d5304457bf0fbc6aedc585c
Manifestd447e580b074bd2c82c8171d2ec5bb808f3a8c4a4751f872692481d9767bba53

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
SignaturehTzhO22Nw77k/Lhr7od2RLLv+VSLh+ubkk4hVXnBg/CCyZHmDy51WJYL/xEOcN5GVcPo53i1pktLQeBQZHK6AQ==
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

2026-09-17T11:13:33.037815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043121
observed e703280c8206317343c7685d19b0e031...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:33.018656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043121/manifest.json
observed d447e580b074bd2c82c8171d2ec5bb80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:32.998724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043121/publication.md
observed 60326fa4be41d9c05287cbd922e66289...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:32.981316ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043121/publication.txt
observed 6d384784f32d536927101fc67be1eb35...
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.