ISRC GBF077642414
Verified recording
GBF077642414 is “The Grand Duke / Act 1: As o'er out penny roll we sing” by Arthur Sullivan,
registered on the CopyrightChains blockchain with CopyrightID
0x603bedc9346c8b4735e23d38cd8308c48678700dce909cb7c692a61fa0f32fdd and independently timestamped
in Bitcoin block 960478 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077642414.
Recording identifiers
- ISRC
- GBF077642414
- Title
- The Grand Duke / Act 1: As o'er out penny roll we sing
- Artist
- Arthur Sullivan
- CopyrightID (CopyrightChains transaction hash)
0x603bedc9346c8b4735e23d38cd8308c48678700dce909cb7c692a61fa0f32fdd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T23:30:38+00:00
- Bitcoin block
- 960478
- Canonical record hash
sha256:5cbfdc1cfcb1fb634db1e696a7889637e06353654f9d438d28714038cb2f5ce9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077642414
- Bitcoin block existence check
- https://blockstream.info/api/block/960478
Full record
Track page: The Grand Duke / Act 1: As o'er out penny roll we sing · Machine-readable JSON-LD