Waltz - Instrumental

Recording by Alex Ivanov-Kramskoi.

Recording identifiers

ISRC
USHM10338614
CopyrightID (CopyrightChains transaction hash)
0xd124269bb2887b2b110d054334a66ea1718d11eed8cf20023dd75cf5dc70cce6
Copyright registration time
2026-07-31T10:56:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:0bcf73358037ff7ba8dd68256d88f57b63fb4e9d4f1723cf8f469974afeb679b

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.