ISRC FR50X2303407
Verified recording
FR50X2303407 is “The Well-Tempered Clavier, Book II: Prelude and Fugue No. 4 in C-Sharp Minor, BWV 873: I. Prelude” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x77087de5214ecf6c55048605083663456de777962188819897207e02e36e1f51 and independently timestamped
in Bitcoin block 960254 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2303407.
Recording identifiers
- ISRC
- FR50X2303407
- Title
- The Well-Tempered Clavier, Book II: Prelude and Fugue No. 4 in C-Sharp Minor, BWV 873: I. Prelude
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x77087de5214ecf6c55048605083663456de777962188819897207e02e36e1f51
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:06:10+00:00
- Bitcoin block
- 960254
- Canonical record hash
sha256:9380cee7c46d8f208a3f7600c0c36345bf46bade8804c4c7ccbe3cd4fdfd3560- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2303407
- Bitcoin block existence check
- https://blockstream.info/api/block/960254
Full record
Track page: The Well-Tempered Clavier, Book II: Prelude and Fugue No. 4 in C-Sharp Minor, BWV 873: I. Prelude · Machine-readable JSON-LD