ISRC USTCZ0939305
Verified recording
USTCZ0939305 is “Negracha” by SILENCIO tango orchestra,
registered on the CopyrightChains blockchain with CopyrightID
0xc78f77f979f3fc4732057155522849b25c9619e3d3f29bee2208f20d7f841a07 and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTCZ0939305.
Recording identifiers
- ISRC
- USTCZ0939305
- Title
- Negracha
- Artist
- SILENCIO tango orchestra
- CopyrightID (CopyrightChains transaction hash)
0xc78f77f979f3fc4732057155522849b25c9619e3d3f29bee2208f20d7f841a07
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:a0b8b188a4430e4a5fc7d9c8a2267a17f46a72a64b5d3ae9a32ff85041e15e13- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTCZ0939305
- Bitcoin block existence check
- https://blockstream.info/api/block/957120