ISRC DEF055909960
Verified recording
DEF055909960 is “2 Waltzes, Op. 69: No. 1. Waltz in A-Flat Major” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xe9a54a6bb14f25525ebcbd8b126ad72acb3e21b98d9607fa0b0f8e1f5387e406 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/DEF055909960.
Recording identifiers
- ISRC
- DEF055909960
- Title
- 2 Waltzes, Op. 69: No. 1. Waltz in A-Flat Major
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xe9a54a6bb14f25525ebcbd8b126ad72acb3e21b98d9607fa0b0f8e1f5387e406
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:93b6853d12968c762b2903f8401c909844d91ef6fff5de43d42a15e28a579cdc- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055909960
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 2 Waltzes, Op. 69: No. 1. Waltz in A-Flat Major · Machine-readable JSON-LD