ISRC CLKR21600313
Verified recording
CLKR21600313 is “Algunos Sueños” by Kalfu,
registered on the CopyrightChains blockchain with CopyrightID
0x4c27a801a0dd6e9aa24533cfec253d661a8d44f8005869f667cd8b2726c49ff4 and independently timestamped
in Bitcoin block 960298 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CLKR21600313.
Recording identifiers
- ISRC
- CLKR21600313
- Title
- Algunos Sueños
- Artist
- Kalfu
- CopyrightID (CopyrightChains transaction hash)
0x4c27a801a0dd6e9aa24533cfec253d661a8d44f8005869f667cd8b2726c49ff4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T19:26:00+00:00
- Bitcoin block
- 960298
- Canonical record hash
sha256:5812a113954a95536dc79ad82a093350d968a318f50c9a4f35f6ee84f4aa12e4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CLKR21600313
- Bitcoin block existence check
- https://blockstream.info/api/block/960298