Heart Strings

Recording identifiers

ISRC

QZLBC2100344

Release date of the album this recording appears on

2021-10-07

CopyrightID (CopyrightChains transaction hash)

0x7069219b776f7e4498336198dcce345db04a5d17f369064e98d4d9ca580890d6

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T08:38:45Z

Bitcoin block

960370

Canonical record hash

sha256:5c52ff77fb94192a2638883e60dc3528f2695914a17a5c5926d20267cf051055

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC QZLBC2100344

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.