ISRC ARF109900947
Verified recording
ARF109900947 is “La Cumparsita (with Leopoldo Federico y Su Orquesta)” by Julio Sosa,
registered on the CopyrightChains blockchain with CopyrightID
0x9926d42a7ce7493c5c25a2bd5f1fcab7d6f6b573f78bbed9cc3be946e156466c 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/ARF109900947.
Recording identifiers
- ISRC
- ARF109900947
- Title
- La Cumparsita (with Leopoldo Federico y Su Orquesta)
- Artist
- Julio Sosa
- CopyrightID (CopyrightChains transaction hash)
0x9926d42a7ce7493c5c25a2bd5f1fcab7d6f6b573f78bbed9cc3be946e156466c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:1e100a4bb4b9918ed1a3a8de3c941e467c948fa6f256971e09a49c2f347ce969- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF109900947
- Bitcoin block existence check
- https://blockstream.info/api/block/953513
Full record
Track page: La Cumparsita (with Leopoldo Federico y Su Orquesta) · Machine-readable JSON-LD