ISRC USRDG0111015
Verified recording
USRDG0111015 is “Estudiantina Waltz” by Charles Gerhardt,
registered on the CopyrightChains blockchain with CopyrightID
0xd084cbf599bd3b33fb86dceec4c6be9f06bf0f0a2ff858d7f3c490efefc95b1c and independently timestamped
in Bitcoin block 960473 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRDG0111015.
Recording identifiers
- ISRC
- USRDG0111015
- Title
- Estudiantina Waltz
- Artist
- Charles Gerhardt
- CopyrightID (CopyrightChains transaction hash)
0xd084cbf599bd3b33fb86dceec4c6be9f06bf0f0a2ff858d7f3c490efefc95b1c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T22:27:44+00:00
- Bitcoin block
- 960473
- Canonical record hash
sha256:4860623a93608d36e765d8a6565335f04313a02406f9d3a28d1ce985b681c518- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRDG0111015
- Bitcoin block existence check
- https://blockstream.info/api/block/960473