ISRC CALC40800308
Verified recording
CALC40800308 is “Las Cuatro Estaciones Porteñas / Otoño Porteño” by Astor Piazzolla,
registered on the CopyrightChains blockchain with CopyrightID
0xb9893fa9058583cf5fed60f27bbb76394c306167636ba8486ebddc3c174672fe and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC40800308.
Recording identifiers
- ISRC
- CALC40800308
- Title
- Las Cuatro Estaciones Porteñas / Otoño Porteño
- Artist
- Astor Piazzolla
- CopyrightID (CopyrightChains transaction hash)
0xb9893fa9058583cf5fed60f27bbb76394c306167636ba8486ebddc3c174672fe
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:f76c98bde7eeec9be37d2619b4d0701b7fa5b56139d1f0dc46036e9bd5b5b65a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC40800308
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: Las Cuatro Estaciones Porteñas / Otoño Porteño · Machine-readable JSON-LD