ISRC PTKG11800081
Verified recording
PTKG11800081 is “Quem Diria” by Katia Guerreiro,
registered on the CopyrightChains blockchain with CopyrightID
0xfaa64f19b9ff2452ed3bfaee0d949d2ecf6edad68df1200f8f93845abfd92e80 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTKG11800081.
Recording identifiers
- ISRC
- PTKG11800081
- Title
- Quem Diria
- Artist
- Katia Guerreiro
- CopyrightID (CopyrightChains transaction hash)
0xfaa64f19b9ff2452ed3bfaee0d949d2ecf6edad68df1200f8f93845abfd92e80
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:1a6c648eeea2d34fbbb1e8a2475b8e2da63f5a3e110ec227003e7fe0f4c62018- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTKG11800081
- Bitcoin block existence check
- https://blockstream.info/api/block/956304