OT-2026-000002741
Publication integrity record
Robot positioning method based on multiple layers of grid maps, and chip and laser robot
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-2026-000002741) never changes.
Identity and time
| Publication number | OT-2026-000002741 · never reused |
|---|---|
| Internal UUID | 01a0a67e-7f30-7211-a748-faba1e90ae3c · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:15:03.088977Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002741 |
| Status | PUBLIC |
Content hashes
| Canonical text | 0cb8d7605a77d5ded243fa0bfca9b63f53f5c9785966ee15b16de1fb8f56ca68 |
|---|---|
| Markdown | 94b6af33613cafedd584148e260417b727cb3fbf87675d9a9d0cf1720c5c1a22 |
| Publication page | 471e829ec409f11e549e16f3f15119242ec05bb3cd9c6d1036770eb386ae0326 |
| Manifest | 10c0b3a2dc98568c6b07572f16625894ffd07401aacb6b15add4bf061db59271 |
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 | ERFiC83V054k5xvSOHfQ31KQNe603YB6ldL5s+jQLfOJEPmCBuLyYMXmqgTZZ+qc3YyvlbZxH1MVJUuu37JDBg== |
| 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
| 2026-09-16T04:23:09.318447Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002741observed 471e829ec409f11e549e16f3f1511924...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T04:23:09.305729Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002741/manifest.jsonobserved 10c0b3a2dc98568c6b07572f16625894...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:09.292346Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002741/publication.mdobserved 94b6af33613cafedd584148e260417b7...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:09.279862Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002741/publication.txtobserved 0cb8d7605a77d5ded243fa0bfca9b63f...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:26.908738Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002741observed 471e829ec409f11e549e16f3f1511924...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:26.793659Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002741/manifest.jsonobserved 10c0b3a2dc98568c6b07572f16625894...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:26.573876Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002741/publication.mdobserved 94b6af33613cafedd584148e260417b7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:26.354908Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002741/publication.txtobserved 0cb8d7605a77d5ded243fa0bfca9b63f...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 |
|---|