ISRC GBAYC0502137
Verified recording
GBAYC0502137 is “Chopin: Waltz No. 9 in A-Flat Major, Op. Posth. 69 No. 1 "Farewell"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x68e52694ab881ac3a6f8484008abfc7f5bab742d31a149b60c5f2e9355d9d4f6 and independently timestamped
in Bitcoin block 957819 on 2026-07-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0502137.
Recording identifiers
- ISRC
- GBAYC0502137
- Title
- Chopin: Waltz No. 9 in A-Flat Major, Op. Posth. 69 No. 1 "Farewell"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x68e52694ab881ac3a6f8484008abfc7f5bab742d31a149b60c5f2e9355d9d4f6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-13T07:53:33+00:00
- Bitcoin block
- 957819
- Canonical record hash
sha256:547eda564eb3794d3238cceb7472271f5a4d1980f2ee898c49e021bd8f7e8102- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0502137
- Bitcoin block existence check
- https://blockstream.info/api/block/957819
Full record
Track page: Chopin: Waltz No. 9 in A-Flat Major, Op. Posth. 69 No. 1 "Farewell" · Machine-readable JSON-LD