Waltz #14

Recording by 若井優也トリオ.

Recording identifiers

ISRC
JPB622400818
CopyrightID (CopyrightChains transaction hash)
0x9e36a7c52b920dbad3dbb12f25a7c6028abe2cc33d387e1bae9992c11dbe9aff
Copyright registration time
2026-07-07T15:53:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:006de4741f681a5968e8488c13c27faf8a6bfe1161f0bba5df734c326391ab1b

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.