ISRC DEF055634202
Verified recording
DEF055634202 is “12 Études, Op. 10: No. 2 in A Minor "Chromatique"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xb7b86dc6d5d4b804c1db099b7d27fc465ddc36b1ef79d8d17deea9344f2d80c5 and independently timestamped
in Bitcoin block 960273 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055634202.
Recording identifiers
- ISRC
- DEF055634202
- Title
- 12 Études, Op. 10: No. 2 in A Minor "Chromatique"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xb7b86dc6d5d4b804c1db099b7d27fc465ddc36b1ef79d8d17deea9344f2d80c5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:47fcf327bd00e87d5268f98cb8302ce40e4562bb46e6ff95d8d9ca48e8ff0b83- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055634202
- Bitcoin block existence check
- https://blockstream.info/api/block/960273
Full record
Track page: 12 Études, Op. 10: No. 2 in A Minor "Chromatique" · Machine-readable JSON-LD