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A key written as numbers.
Also known as: Bitting code, Key cut code, Depth code key
The sequence of numbers describing the depths cut into a key.
Describes a key as a sequence of cut depths at fixed positions.
Contexts: History, Public information
Reduces a physical object to a short number, so a key can be reproduced from the code alone without the original — which is why bitting codes are treated as security-sensitive rather than as reference data.
Contexts: History, Public information
The record describes the notation and gives no code, no depth scale and no means of deriving one.
No bitting code, depth specification or derivation method is given.
Contexts: History, Public information
A short string of digits, one per cut position, each giving the depth of that cut on a standard scale.