ISRC US4R31334344
Verified recording
US4R31334344 is “Waltz No. 6 in D-Flat Major, Op. 64, No. 1 "Minute"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x42ceb8e7bfcbf13e0a7d4147f01304f61ff096b5b6af583e1c47ceea7090eead and independently timestamped
in Bitcoin block 960298 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4R31334344.
Recording identifiers
- ISRC
- US4R31334344
- Title
- Waltz No. 6 in D-Flat Major, Op. 64, No. 1 "Minute"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x42ceb8e7bfcbf13e0a7d4147f01304f61ff096b5b6af583e1c47ceea7090eead
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T19:26:00+00:00
- Bitcoin block
- 960298
- Canonical record hash
sha256:2c6ce0abaad7e3d5a2764e3bef3c28aeac6b88fd02d12a3119a42d60a95e7528- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4R31334344
- Bitcoin block existence check
- https://blockstream.info/api/block/960298
Full record
Track page: Waltz No. 6 in D-Flat Major, Op. 64, No. 1 "Minute" · Machine-readable JSON-LD