OT-2026-000002452
Publication integrity record
Robotic arm path planning method based on directionally extended rrt algorithm
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-2026-000002452) never changes.
Identity and time
| Publication number | OT-2026-000002452 · never reused |
|---|---|
| Internal UUID | 01a0a67c-c7e9-7c35-8cd8-e2ecd3fed023 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:13:10.634004Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002452 |
| Status | PUBLIC |
Content hashes
| Canonical text | 0a521553ee08f9122723f36f478ab3c2fc19f9891fa1d8da182681dd3ea80aab |
|---|---|
| Markdown | 1e8795a57fc604318f6e637a346ef0ad0a302a15cfa9850799dc7d000479a092 |
| Publication page | 3e540a2ebcd79bec1dcf9bafb88a14bba6307d747b7b222ec979a8e68f21731b |
| Manifest | f31987def686847fa296ac281493d95c1f2ef150c772787383c3b6bd0cdd821b |
SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.
Manifest signature
| Algorithm | Ed25519 · key
OT-SIGN-2026-01 · Verified |
|---|---|
| Signature | LL0IGW4xb1tZrFjh6GENoC/+bi9yfNNPcKbVBG3CXxBbq+U6SapiDjQZamINbnYdznAEEAFg3I/qvShg4lqZBw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-10-20T20:41:38.873827Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002452observed 3e540a2ebcd79bec1dcf9bafb88a14bb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-20T20:41:38.820509Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002452/manifest.jsonobserved f31987def686847fa296ac281493d95c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T20:41:38.747017Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002452/publication.mdobserved 1e8795a57fc604318f6e637a346ef0ad...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T20:41:38.470548Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002452/publication.txtobserved 0a521553ee08f9122723f36f478ab3c2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:41:39.391885Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002452observed 3e540a2ebcd79bec1dcf9bafb88a14bb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:41:39.204200Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002452/manifest.jsonobserved f31987def686847fa296ac281493d95c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:41:38.898194Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002452/publication.mdobserved 1e8795a57fc604318f6e637a346ef0ad...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:41:38.390469Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002452/publication.txtobserved 0a521553ee08f9122723f36f478ab3c2...fetched by grabo-systems from 34.44.131.203, 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 archive | Pending 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
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|