Sad Songs

Recording identifiers

ISRC

USONJ0200125

CopyrightID (CopyrightChains transaction hash)

0x5042287fadb9c03f922ca79f86fca4528b23e4ac1091cd4dc9b62b0a1df28158

Copyright registration time

2026-07-06T18:15:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T09:18:01Z

Bitcoin block

957020

Canonical record hash

sha256:b6270fbfc9fc5e440e8293b342e70daa1c1858350c5801c04bf5ac606e964e0b

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.