ISRC DEF056702146
Verified recording
DEF056702146 is “Etudes For Guitar, Op. 31: No. 22 In B-Flat Major” by Fernando Sor,
registered on the CopyrightChains blockchain with CopyrightID
0xd27512ca315bb7fabaeb5d8dafb243facfa03dd892fd63a259cd1b7c62a3db70 and independently timestamped
in Bitcoin block 960427 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056702146.
Recording identifiers
- ISRC
- DEF056702146
- Title
- Etudes For Guitar, Op. 31: No. 22 In B-Flat Major
- Artist
- Fernando Sor
- CopyrightID (CopyrightChains transaction hash)
0xd27512ca315bb7fabaeb5d8dafb243facfa03dd892fd63a259cd1b7c62a3db70
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:59:18+00:00
- Bitcoin block
- 960427
- Canonical record hash
sha256:6ec3e8c526a2581b3f2ec9b71ca7b6b5e4beecf92ec5f27d5c992d6bbbcbdcbe- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056702146
- Bitcoin block existence check
- https://blockstream.info/api/block/960427
Full record
Track page: Etudes For Guitar, Op. 31: No. 22 In B-Flat Major · Machine-readable JSON-LD