The Tears of Billie Blue

Recording by Cæcilie Norby.

Recording identifiers

ISRC
DEA891001155
Release date of the album this recording appears on
2011-01-28
CopyrightID (CopyrightChains transaction hash)
0x9c1060c04c01ca4a9d78c4a17461e491409382544b7428c239db112381959733
Copyright registration time
2026-07-31T06:15:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T06:58:00Z
Bitcoin block
960362
Canonical record hash
sha256:3bae84d12aa747c4d56fdb4ffad7f55a4b6a8e5ece09bf68b50c6e8a2f0b7f98

What this proof establishes

This recording was released in 2011, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.