Toronto

Recording by B.Costa.

Recording identifiers

ISRC
MXUM62300472
CopyrightID (CopyrightChains transaction hash)
0xe75cfe586280821a1e4ccc2004982917743752e621be4642901f197268b9740e
Copyright registration time
2026-06-19T19:44:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:a68a97a97d6fd493fb7f21fca5ca1195a41de5d0cf8084a0fafe2021f9dcd552

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.