ISRC FR50X1524809
Verified recording
FR50X1524809 is “String Quartet No. 3 in B-Flat Major, Op. 67: I. Vivace” by Johannes Brahms,
registered on the CopyrightChains blockchain with CopyrightID
0x81479456ec284b0928ad7e31a4fd30a01df4be4325047ff013333c8d4f342727 and independently timestamped
in Bitcoin block 960300 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1524809.
Recording identifiers
- ISRC
- FR50X1524809
- Title
- String Quartet No. 3 in B-Flat Major, Op. 67: I. Vivace
- Artist
- Johannes Brahms
- CopyrightID (CopyrightChains transaction hash)
0x81479456ec284b0928ad7e31a4fd30a01df4be4325047ff013333c8d4f342727
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T19:42:40+00:00
- Bitcoin block
- 960300
- Canonical record hash
sha256:80139e64ef30a578b32475f783f2b5c1e570c333b202e7c7e9303c64da579a1a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1524809
- Bitcoin block existence check
- https://blockstream.info/api/block/960300
Full record
Track page: String Quartet No. 3 in B-Flat Major, Op. 67: I. Vivace · Machine-readable JSON-LD