Bittersweet

Recording identifiers

ISRC

QM4TX2001357

Release date of the album this recording appears on

2021-05-21

CopyrightID (CopyrightChains transaction hash)

0xc95a7431188cca117c815b8702247131746c5fa5e1d910d1d7c0cd2e5691672f

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T19:35:34Z

Bitcoin block

960138

Canonical record hash

sha256:6da1437d29a0143c5374a8ce54c340e0831b6b8d887de77e49d2f177cee7d0af

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC QM4TX2001357

What this proof establishes

This recording was released in 2021, 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.