OT-2026-000002123
Publication integrity record
Systems, and methods for real time calibration of multiple range sensors on a 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-2026-000002123) never changes.
Identity and time
| Publication number | OT-2026-000002123 · never reused |
|---|---|
| Internal UUID | 01a0a67a-bd6a-73b7-8dd0-cc7cd695f584 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:10:56.874666Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002123 |
| Status | PUBLIC |
Content hashes
| Canonical text | dc5860aedc15e9a04a3e486415129ccd667fea50367ce04343ce32b442f099c8 |
|---|---|
| Markdown | 952753c17d18995428e11aae205834ef82bf7f7bc27b8a4e8ae7542d82974fc2 |
| Publication page | a3c302849300ad61bcf0e1739a5782d25f49c5db99b9a7fd7d0bacbc4c6ed39e |
| Manifest | a73c32a2f8f4996403de3e08419ed06ba156e9a6dfa08fda6f7f124866add508 |
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 | 7xJ7IjEzkpQlCxmKQ4ONQT/0n9wDYXUcg7WAIQqak9QXLKLH89xvEsxaNlwOvmFGSxb1BELetFQYgyjN/eG+Dg== |
| 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
| 2026-10-12T08:41:10.211269Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002123observed a3c302849300ad61bcf0e1739a5782d2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-12T08:41:10.135112Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002123/manifest.jsonobserved a73c32a2f8f4996403de3e08419ed06b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-12T08:41:10.059522Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002123/publication.mdobserved 952753c17d18995428e11aae205834ef...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-12T08:41:09.916960Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002123/publication.txtobserved dc5860aedc15e9a04a3e486415129ccd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T00:41:44.854700Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002123observed a3c302849300ad61bcf0e1739a5782d2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T00:41:44.763302Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002123/manifest.jsonobserved a73c32a2f8f4996403de3e08419ed06b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T00:41:44.655803Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002123/publication.mdobserved 952753c17d18995428e11aae205834ef...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T00:41:44.501717Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002123/publication.txtobserved dc5860aedc15e9a04a3e486415129ccd...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 |
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