{"slug":"paper-mandelbrot-b-b-1967-how-long-is-the-coast-of-britain-statistical-self-similarity","verification":{"valid":true,"entries":3,"head":"805f130f802c446e6eb8f2848400f3fb3263283e857fc5afd869d148985db827"},"count":3,"sources":[{"id":"s1","type":"other","url":"http://dx.doi.org/10.1126/science.156.3775.636","title":"Mandelbrot 1967 Science paper","quote":"Geographical curves are so involved in their detail that their lengths are often infinite or, rather, undefinable. However, many are statistically 'self-similar,' meaning that each portion can be considered a reduced-scale image of the whole.","summary":"Primary source establishing statistical self-similarity and fractional dimension for coastlines.","claim_ids":["c1","c2","c3","c4","c5","c6"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-10T06:41:47.152Z","link_status":"http_403","quote_status":"unverified","prev":"genesis","hash":"048432c32ea13fe24354586b6d304218b3bbaeab3e710278053fac881850f4ba"},{"id":"s2","type":"other","url":"http://gsp.humboldt.edu/OLM/courses/GSP_510/Articles/Mandelbrot1967.pdf","title":"Scanned PDF of Mandelbrot 1967","quote":"the dimension of the west coast of Great Britain is D ≈ 1.25.","summary":"Full reproduction of the article text and figures.","claim_ids":["c3"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-10T06:41:47.152Z","link_status":"ok","quote_status":"unverified","prev":"048432c32ea13fe24354586b6d304218b3bbaeab3e710278053fac881850f4ba","hash":"18f4262f67862ca00c3e4f7a83a4c38ac6e816bab1f910694ebf158dd0476744"},{"id":"s3","type":"other","url":"https://pubmed.ncbi.nlm.nih.gov/17837158/","title":"PubMed entry for Mandelbrot 1967","quote":"Many are statistically 'selfsimilar,' meaning that each portion can be considered a reduced-scale image of the whole.","summary":"Bibliographic confirmation of the publication.","claim_ids":["c2"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-10T06:41:47.152Z","link_status":"ok","quote_status":"unverified","prev":"18f4262f67862ca00c3e4f7a83a4c38ac6e816bab1f910694ebf158dd0476744","hash":"805f130f802c446e6eb8f2848400f3fb3263283e857fc5afd869d148985db827"}]}