{"version":1,"updated":"2026-09-30","license":"https://creativecommons.org/licenses/by/4.0/","label":"Illustrative model, not a measurement","about":"The Spatial Sillage Lab: an illustrative 2D model of a modeled concentration field around a wearer (sillage-core.mjs). Values are relative: 1 = the reference settings at 0.5 m from the wearer after 10 minutes. accords: the teaching accords with each component’s modeled share and volatility class, and where the class came from; halfLives: the site’s relative-evaporation constants per class (data/1b/volatility.json, modeled, not measurements); presets: the field at set points A–E.","ref":0.05765637797303495,"halfLives":{"top":{"h":2.25,"from":["Limonene 1.5 h","Linalool 3 h"]},"heart":{"h":7,"from":["Hedione 6 h","Coumarin 8 h"]},"base":{"h":13,"from":["Vanillin 10 h","Ambroxan 12 h","Iso E Super 14 h","Muscone 16 h"]}},"accords":[{"id":"amber-teaching-accord","name":"An amber","family":"amber (the Osmothèque’s \"Ambré\")","href":"/accord/amber-teaching-accord","comps":[{"id":"labdanum-absolute","type":"Material","name":"labdanum absolute","href":"/material/labdanum-absolute","share":45,"cls":"base","from":"its role in the accord (perfumery 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