ISRC DEF058803642
Verified recording
DEF058803642 is “Concerto grosso no.1 (1976-77): 2. Toccata: Allegro” by Alfred Schnittke,
registered on the CopyrightChains blockchain with CopyrightID
0xbd5a55e71a9f7d5ed0843fc30e0e4c5f678e4f931d4ec2e4b2000a25d881f382 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058803642.
Recording identifiers
- ISRC
- DEF058803642
- Title
- Concerto grosso no.1 (1976-77): 2. Toccata: Allegro
- Artist
- Alfred Schnittke
- CopyrightID (CopyrightChains transaction hash)
0xbd5a55e71a9f7d5ed0843fc30e0e4c5f678e4f931d4ec2e4b2000a25d881f382
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:e3ead2fd69ee8b7a2a18ac7b4c93c844e0d485a93ad744944280e549c7eef8d8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058803642
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Concerto grosso no.1 (1976-77): 2. Toccata: Allegro · Machine-readable JSON-LD