Vol. One: Fred's Songs / Heartsong

Recording by Fred Hersch.

Recording identifiers

ISRC
USNO10061229
CopyrightID (CopyrightChains transaction hash)
0x6187ae604f395cb1b251c40313450568f6988234dc6e93091df5f2cdb81cb8bf
Copyright registration time
2026-07-07T13:42:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:66f6ca0f9cee659fb22b67e4ea3cfb991ea8102715386e1d9d1aca8b6e7d6f5b

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.