ISRC QM4TW1558452
Verified recording
QM4TW1558452 is “21 Études for Solo Cello: No. 7 In G Minor - Allegro” by Jean-Louis Duport,
registered on the CopyrightChains blockchain with CopyrightID
0x1ebc377be64713e4c00f9e748ece8e1ffba15cd824190610633e72175dcd0fe0 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1558452.
Recording identifiers
- ISRC
- QM4TW1558452
- Title
- 21 Études for Solo Cello: No. 7 In G Minor - Allegro
- Artist
- Jean-Louis Duport
- CopyrightID (CopyrightChains transaction hash)
0x1ebc377be64713e4c00f9e748ece8e1ffba15cd824190610633e72175dcd0fe0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:8b15c9b4a1a5cd4c2f1ae752be62a4510830f2f015504c49ba7c0f54a7c6e2e3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1558452
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: 21 Études for Solo Cello: No. 7 In G Minor - Allegro · Machine-readable JSON-LD