ISRC DEF059705412
Verified recording
DEF059705412 is “Cello Concerto in A Minor, Op. 129: II. Langsam” by Robert Schumann,
registered on the CopyrightChains blockchain with CopyrightID
0x6ca72969d6868a3e670a680792faab737cfdc2d19047ee39db1f81f97b1f9cc5 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059705412.
Recording identifiers
- ISRC
- DEF059705412
- Title
- Cello Concerto in A Minor, Op. 129: II. Langsam
- Artist
- Robert Schumann
- CopyrightID (CopyrightChains transaction hash)
0x6ca72969d6868a3e670a680792faab737cfdc2d19047ee39db1f81f97b1f9cc5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:c4b3f33e36931259b27e66435000c122ab89d0451d52361f56c7b258e3737bea- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059705412
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Cello Concerto in A Minor, Op. 129: II. Langsam · Machine-readable JSON-LD