ISRC USSM11000329
Verified recording
USSM11000329 is “The Ballad of Billy the Kid - Live April 1972 At Sigma Sound Studios, WMMR Radio, Philadelphia, PA” by Billy Joel,
registered on the CopyrightChains blockchain with CopyrightID
0x50df6a0a7e666f2ee7556c88bb8c4c6ec09e1c9672c4fe33e08ceb05c03a2b7b 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/USSM11000329.
Recording identifiers
- ISRC
- USSM11000329
- Title
- The Ballad of Billy the Kid - Live April 1972 At Sigma Sound Studios, WMMR Radio, Philadelphia, PA
- Artist
- Billy Joel
- CopyrightID (CopyrightChains transaction hash)
0x50df6a0a7e666f2ee7556c88bb8c4c6ec09e1c9672c4fe33e08ceb05c03a2b7b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:0b63b50bf20515b67aa973a87b5dbd9ced4465681a5fe367b32e72148a936638- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11000329
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: The Ballad of Billy the Kid - Live April 1972 At Sigma Sound Studios, WMMR Radio, Philadelphia, PA · Machine-readable JSON-LD