ISRC GBSMU4111275
Verified recording
GBSMU4111275 is “Nocturne-Valse in G Minor No. 2” by Carlos Marquez,
registered on the CopyrightChains blockchain with CopyrightID
0xa4909b60c5f2ad73e5d202405fb8c853e90172fbb43ba6925e6dbd4d810857e2 and independently timestamped
in Bitcoin block 960360 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4111275.
Recording identifiers
- ISRC
- GBSMU4111275
- Title
- Nocturne-Valse in G Minor No. 2
- Artist
- Carlos Marquez
- CopyrightID (CopyrightChains transaction hash)
0xa4909b60c5f2ad73e5d202405fb8c853e90172fbb43ba6925e6dbd4d810857e2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T06:42:11+00:00
- Bitcoin block
- 960360
- Canonical record hash
sha256:4e14bcc70c708ef7b33e9b0197e0fb25dac664944a440ab11611f11e30662ced- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4111275
- Bitcoin block existence check
- https://blockstream.info/api/block/960360
Full record
Track page: Nocturne-Valse in G Minor No. 2 · Machine-readable JSON-LD