Twin Sisters

Recording identifiers

ISRC

GBMA21854016

Release date of the album this recording appears on

2019-02-15

CopyrightID (CopyrightChains transaction hash)

0x2e72ab105ac03771352844c3184e45f6d82f9f0c2b76b9f5d3551175b60d8646

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T21:09:47Z

Bitcoin block

960144

Canonical record hash

sha256:3981d29238b57f1c17ca60ad95cdf08a3e05892513ad1b95edea43ae751733eb

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBMA21854016

What this proof establishes

This recording was released in 2019, 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.