ISRC CAK721941925
Verified recording
CAK721941925 is “Hard Summer” by Alexandre Da Costa,
registered on the CopyrightChains blockchain with CopyrightID
0x10a89d7539f85715588f289f77fbaed6bf3aefc51f715532e0e876899653c32b 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/CAK721941925.
Recording identifiers
- ISRC
- CAK721941925
- Title
- Hard Summer
- Artist
- Alexandre Da Costa
- CopyrightID (CopyrightChains transaction hash)
0x10a89d7539f85715588f289f77fbaed6bf3aefc51f715532e0e876899653c32b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:9c5ea7d52abd3990c8cfcb7a1ec2d70ffd83771d9313d0301a98baf3f63f5989- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAK721941925
- Bitcoin block existence check
- https://blockstream.info/api/block/957118