ISRC CNUM71600030
Verified recording
CNUM71600030 is “Um A Zero” by Pixinguinha,
registered on the CopyrightChains blockchain with CopyrightID
0x4d5cd2d4e94180f285085b3f94130d540e42ccf67ea5373eb1a5dd292cf30114 and independently timestamped
in Bitcoin block 960459 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNUM71600030.
Recording identifiers
- ISRC
- CNUM71600030
- Title
- Um A Zero
- Artist
- Pixinguinha
- CopyrightID (CopyrightChains transaction hash)
0x4d5cd2d4e94180f285085b3f94130d540e42ccf67ea5373eb1a5dd292cf30114
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T20:22:46+00:00
- Bitcoin block
- 960459
- Canonical record hash
sha256:61fc83b737e56a2d805e54accaebc76ec7d9c526a11cda868038e66ea4b1961e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNUM71600030
- Bitcoin block existence check
- https://blockstream.info/api/block/960459