Letter

Recording by Yiruma.

Recording identifiers

ISRC
USA370956113
CopyrightID (CopyrightChains transaction hash)
0x1a8c78c39c2adc06c8a2288ef83f95423aaff8c10b46a681e6d84cf60785c946
Copyright registration time
2026-06-06T21:10:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:62ea5be8a4fe221cec2a0f2ead762dac7d382a6da76e10df26d3767ed3abb888

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.