Practice Heart

Recording by Mr. Fastfinger.

Recording identifiers

ISRC
FI53T1300002
CopyrightID (CopyrightChains transaction hash)
0x506255ae106df22d02fde861ad2b78020a6f401dcd55b4f7644b16e089dc098c
Copyright registration time
2026-07-31T01:03:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T02:19:15Z
Bitcoin block
960334
Canonical record hash
sha256:c1ae4043bdc1209cf96064e79dc0945dfd453216502503e157f89ebfdbe708b1

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.