A Heart of Stone

Recording identifiers

ISRC

TCAHC2309891

CopyrightID (CopyrightChains transaction hash)

0x91df3de8582f8f7a8a0adb33dd24c932e2095fac29b444d150f2eeda7d89db94

Copyright registration time

2026-07-30T10:49:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T11:13:28Z

Bitcoin block

960250

Canonical record hash

sha256:8ad444f175ea3de7874b578933427f08fc312088e54999a2e8e4f52b6983867b

• 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.