ISRC USSM11505542
Verified recording
USSM11505542 is “The People United Will Never Be Defeated! - 36 Variations on ¡El pueblo unido jamás será vencido!: Var. 15 - Flexible, like an improvisation” by Frederic Rzewski,
registered on the CopyrightChains blockchain with CopyrightID
0x9500b55e5933cb4633ebcee7ff83c5dfd4ef79f1744dbeda9b1df0ceebc7e654 and independently timestamped
in Bitcoin block 960207 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11505542.
Recording identifiers
- ISRC
- USSM11505542
- Title
- The People United Will Never Be Defeated! - 36 Variations on ¡El pueblo unido jamás será vencido!: Var. 15 - Flexible, like an improvisation
- Artist
- Frederic Rzewski
- CopyrightID (CopyrightChains transaction hash)
0x9500b55e5933cb4633ebcee7ff83c5dfd4ef79f1744dbeda9b1df0ceebc7e654
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T04:47:22+00:00
- Bitcoin block
- 960207
- Canonical record hash
sha256:e38f6cc084d32834338b2c10a2412f5a3f2e9e6d39fea5d1d105624cd7f000f3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11505542
- Bitcoin block existence check
- https://blockstream.info/api/block/960207
Full record
Track page: The People United Will Never Be Defeated! - 36 Variations on ¡El pueblo unido jamás será vencido!: Var. 15 - Flexible, like an improvisation · Machine-readable JSON-LD