ISRC CZD940900027
Verified recording
CZD940900027 is “National Anthem of Portuguese Republic” by Alfredo Keil,
registered on the CopyrightChains blockchain with CopyrightID
0xbfa2048f64e0935461837ed129cf0860a4247dc2401715f85b919559a393cc08 and independently timestamped
in Bitcoin block 960360 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZD940900027.
Recording identifiers
- ISRC
- CZD940900027
- Title
- National Anthem of Portuguese Republic
- Artist
- Alfredo Keil
- CopyrightID (CopyrightChains transaction hash)
0xbfa2048f64e0935461837ed129cf0860a4247dc2401715f85b919559a393cc08
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T06:42:11+00:00
- Bitcoin block
- 960360
- Canonical record hash
sha256:7cbdb765e94e32ff14258b139e4f31578c019e0782fd1052a0999aa4378d1d28- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZD940900027
- Bitcoin block existence check
- https://blockstream.info/api/block/960360
Full record
Track page: National Anthem of Portuguese Republic · Machine-readable JSON-LD