ISRC DEF056702121
Verified recording
DEF056702121 is “24 Etudes, Op. 35: No. 21 In B Major” by Fernando Sor,
registered on the CopyrightChains blockchain with CopyrightID
0xd32814cce8cfcacd62bd95e45deaab4d770ae9797de30ce1310ededfe7fcc78c and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056702121.
Recording identifiers
- ISRC
- DEF056702121
- Title
- 24 Etudes, Op. 35: No. 21 In B Major
- Artist
- Fernando Sor
- CopyrightID (CopyrightChains transaction hash)
0xd32814cce8cfcacd62bd95e45deaab4d770ae9797de30ce1310ededfe7fcc78c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:8e4fedd5335163c9961825b6a683b5c9ec19c725c8f09feb95351c72a214ac7c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056702121
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 24 Etudes, Op. 35: No. 21 In B Major · Machine-readable JSON-LD