ISRC DES380023320
Verified recording
DES380023320 is “Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2: Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x730f9affdd3f9f4834554c93da4ec1de3886b778655c34c9765aef355b53954d and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380023320.
Recording identifiers
- ISRC
- DES380023320
- Title
- Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2: Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x730f9affdd3f9f4834554c93da4ec1de3886b778655c34c9765aef355b53954d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:e88e11d0eea22d68b4be68c6a07d12c30168cf3a0c5ad17cf9d96213ac9707a8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380023320
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2: Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2 · Machine-readable JSON-LD