ISRC DEF057230103
Verified recording
DEF057230103 is “12 Études, Op. 25: No. 4 in A Minor "Paganini"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xa163f904ec7acf113422a0ad5c5c38e951f6f6d9f617f90dab2de25eedfcaebe and independently timestamped
in Bitcoin block 960105 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230103.
Recording identifiers
- ISRC
- DEF057230103
- Title
- 12 Études, Op. 25: No. 4 in A Minor "Paganini"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xa163f904ec7acf113422a0ad5c5c38e951f6f6d9f617f90dab2de25eedfcaebe
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T12:35:17+00:00
- Bitcoin block
- 960105
- Canonical record hash
sha256:e24771f35f3658cebc024db4d5326cebb7af42adba83a7e058065c13c90ba7dc- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230103
- Bitcoin block existence check
- https://blockstream.info/api/block/960105
Full record
Track page: 12 Études, Op. 25: No. 4 in A Minor "Paganini" · Machine-readable JSON-LD