ISRC DEF056730720
Verified recording
DEF056730720 is “Mazurka No. 36 In A Minor Op. 59 No. 1” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x04159755872dc45be781d1fb37018743752b7c4547918e26267b78755d417c42 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056730720.
Recording identifiers
- ISRC
- DEF056730720
- Title
- Mazurka No. 36 In A Minor Op. 59 No. 1
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x04159755872dc45be781d1fb37018743752b7c4547918e26267b78755d417c42
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:0fcf1457a37402a55d0bb6f9fd47f95d9a3d5de3544e09b62aefc73a1bddb9b4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056730720
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Mazurka No. 36 In A Minor Op. 59 No. 1 · Machine-readable JSON-LD