ISRC ARF109900963
Verified recording
ARF109900963 is “El Ultimo Café (with Leopoldo Federico y Su Orquesta)” by Julio Sosa,
registered on the CopyrightChains blockchain with CopyrightID
0x978591d669be7aa523c994e2e7e06030ffac06a07a2e0f9cd6efbdb3529edb9f and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF109900963.
Recording identifiers
- ISRC
- ARF109900963
- Title
- El Ultimo Café (with Leopoldo Federico y Su Orquesta)
- Artist
- Julio Sosa
- CopyrightID (CopyrightChains transaction hash)
0x978591d669be7aa523c994e2e7e06030ffac06a07a2e0f9cd6efbdb3529edb9f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:e9fad261142a44d1a12185ae4d5fe725ec6b9b1b4c7a0ac4071616809f92bf5f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF109900963
- Bitcoin block existence check
- https://blockstream.info/api/block/953513
Full record
Track page: El Ultimo Café (with Leopoldo Federico y Su Orquesta) · Machine-readable JSON-LD