ISRC GBBBA0040409
Verified recording
GBBBA0040409 is “Songs from "Des Knaben Wunderhorn": Rheinlegendchen” by Gustav Mahler,
registered on the CopyrightChains blockchain with CopyrightID
0x441b108f0a9024d118b5fc4876a4a9d51c0aec533b6e2236b80e8dc377df7ba3 and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0040409.
Recording identifiers
- ISRC
- GBBBA0040409
- Title
- Songs from "Des Knaben Wunderhorn": Rheinlegendchen
- Artist
- Gustav Mahler
- CopyrightID (CopyrightChains transaction hash)
0x441b108f0a9024d118b5fc4876a4a9d51c0aec533b6e2236b80e8dc377df7ba3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:3036b31b2218059c2620dfab00f9bc3194680b67490c59c687f665cadcc2bd26- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0040409
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Songs from "Des Knaben Wunderhorn": Rheinlegendchen · Machine-readable JSON-LD