ISRC ARF040000135

Verified recording

ARF040000135 is “Libertango” by Astor Piazzolla, registered on the CopyrightChains blockchain with CopyrightID 0x5e3dff4afdb4386ecb2e3224f2586c2a16790f8a07b12322a954bb5c897f161e 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/ARF040000135.

Recording identifiers

ISRC
ARF040000135
Title
Libertango
Artist
Astor Piazzolla
CopyrightID (CopyrightChains transaction hash)
0x5e3dff4afdb4386ecb2e3224f2586c2a16790f8a07b12322a954bb5c897f161e

Dual-chain proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19+00:00
Bitcoin block
957118
Canonical record hash
sha256:ce6e39c227abba5f3f635d8eec370b51ab887ea950e4ed929703915ebda186b2
Verification API (6-check server-side result)
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF040000135
Bitcoin block existence check
https://blockstream.info/api/block/957118

Full record

Track page: Libertango · Machine-readable JSON-LD