ISRC CACA30881203
Verified recording
CACA30881203 is “Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2: Valse in C-Sharp Minor, Op. 64, CT 213, No. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x8486909005e29bef6f99c36672d3ef5fb05463f5cb89afd9691446cdef8772cf and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACA30881203.
Recording identifiers
- ISRC
- CACA30881203
- Title
- Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2: Valse in C-Sharp Minor, Op. 64, CT 213, No. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x8486909005e29bef6f99c36672d3ef5fb05463f5cb89afd9691446cdef8772cf
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:a0bc215931a1f6bc09ca9895d631e80d2a08387fd1f77bedcc81b761ed34ff48- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACA30881203
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2: Valse in C-Sharp Minor, Op. 64, CT 213, No. 2 · Machine-readable JSON-LD