Schemasdatafingerprint/v1

DataFingerprint

Component

Identity of one dataset: a content hash plus the structural facts that make a mismatch diagnosable rather than merely detectable.

Raw JSONv1Unknown properties rejected

Properties

method

string

What was hashed: the source file's bytes, the serialized R object, or the canonical Arrow table.

one of"file""object""table"

algorithm

string

Hash algorithm, recorded so a hash is verifiable rather than merely comparable.

one of"sha256""sha512""sha384""sha224""sha3-256""sha3-512""blake2b""blake2s""sha1""md5"

encoding

string

The exact byte recipe hashed. Two digests are comparable only if they share one.

hash

string

Hash digest, as hex.

n_rows

integer≥ 0

Number of rows (cases).

n_cols

integer≥ 0

Number of columns.

column_names

array | null≥ 1 items

Column names, in order.

source

string | null

Path the data was read from. NULL for in-memory input.

language

string

The language that computed the hash.

data_structure

string

The form the data was held in when hashed.

Used by