ISRC NLTR41200021
Verified recording
NLTR41200021 is “Goldberg Variations Bwv 988, Variatio 20” by Calefax Reed Quintet,
registered on the CopyrightChains blockchain with CopyrightID
0xd016feb317efc7c3f6f46c94aabe9a3ad791e6450caf6012165a6b1c85d1aeb4 and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLTR41200021.
Recording identifiers
- ISRC
- NLTR41200021
- Title
- Goldberg Variations Bwv 988, Variatio 20
- Artist
- Calefax Reed Quintet
- CopyrightID (CopyrightChains transaction hash)
0xd016feb317efc7c3f6f46c94aabe9a3ad791e6450caf6012165a6b1c85d1aeb4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:32646fead603d1820333c5a63ec75f8cf1555c104cdad6a190d22a3646393e27- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLTR41200021
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Goldberg Variations Bwv 988, Variatio 20 · Machine-readable JSON-LD