ISRC DEF059904500
Verified recording
DEF059904500 is “Widmung, Op. 25, No. 1” by Robert Schumann,
registered on the CopyrightChains blockchain with CopyrightID
0xcf7a31930fbb610f184c616bbebebacbbc1b7fdf2bf9274b4779f45f8bf4c8b0 and independently timestamped
in Bitcoin block 960216 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059904500.
Recording identifiers
- ISRC
- DEF059904500
- Title
- Widmung, Op. 25, No. 1
- Artist
- Robert Schumann
- CopyrightID (CopyrightChains transaction hash)
0xcf7a31930fbb610f184c616bbebebacbbc1b7fdf2bf9274b4779f45f8bf4c8b0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T06:39:12+00:00
- Bitcoin block
- 960216
- Canonical record hash
sha256:3ca009adb2337cd51a65bd0ab98c457f6e95ad3a6cc2266fd82a140f1507cc22- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059904500
- Bitcoin block existence check
- https://blockstream.info/api/block/960216
Full record
Track page: Widmung, Op. 25, No. 1 · Machine-readable JSON-LD