ISRC DEF056604120
Verified recording
DEF056604120 is “Annen-Polka, Op. 117 - Recorded 1966” by Johann Strauss II,
registered on the CopyrightChains blockchain with CopyrightID
0xcf89bdb3368398b8169a73c79ec9476ca5f5ef5479436b03dd2472eb70f8fbf3 and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056604120.
Recording identifiers
- ISRC
- DEF056604120
- Title
- Annen-Polka, Op. 117 - Recorded 1966
- Artist
- Johann Strauss II
- CopyrightID (CopyrightChains transaction hash)
0xcf89bdb3368398b8169a73c79ec9476ca5f5ef5479436b03dd2472eb70f8fbf3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:3328bcddbb4dbd8de96dcae7939e3e031a8823487f0575a89f40e432ed04e063- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056604120
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Annen-Polka, Op. 117 - Recorded 1966 · Machine-readable JSON-LD