ISRC CAJ720739707
Verified recording
CAJ720739707 is “Étude No. 1: Maestoso (Arr. by Roland Dyens)” by Fernando Sor,
registered on the CopyrightChains blockchain with CopyrightID
0x5cd7b81f6284355c5d3b0455fdea469788cb7d36509e07b0956a7af5ddb590be 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/CAJ720739707.
Recording identifiers
- ISRC
- CAJ720739707
- Title
- Étude No. 1: Maestoso (Arr. by Roland Dyens)
- Artist
- Fernando Sor
- CopyrightID (CopyrightChains transaction hash)
0x5cd7b81f6284355c5d3b0455fdea469788cb7d36509e07b0956a7af5ddb590be
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:aacf94b53fe2d0631dac95859fbd5375654a9657eb3c8f29c495a923015c8abe- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720739707
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Étude No. 1: Maestoso (Arr. by Roland Dyens) · Machine-readable JSON-LD