ISRC DEF055909970
Verified recording
DEF055909970 is “2 Waltzes, Op. 69: No. 2 Waltz in B Minor” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xa8567f8916acefc9648155258bb4c83cd95f828766d8f3523654508a12ff34f2 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/DEF055909970.
Recording identifiers
- ISRC
- DEF055909970
- Title
- 2 Waltzes, Op. 69: No. 2 Waltz in B Minor
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xa8567f8916acefc9648155258bb4c83cd95f828766d8f3523654508a12ff34f2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:3f526f56afe0106e2399d6f17cc12f0b63ce6569f50153f8edf2a7c49d1b73ce- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055909970
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 2 Waltzes, Op. 69: No. 2 Waltz in B Minor · Machine-readable JSON-LD