ISRC CALC41900104
Verified recording
CALC41900104 is “Winterreise, D. 911 (Arr. for Voice and Chamber Ensemble): IV. Erstarrung” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x1c73c159c7ba0719047c5378294b47f80d65ffd6e07e8f44d7b4695e1d8ca28d and independently timestamped
in Bitcoin block 960344 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41900104.
Recording identifiers
- ISRC
- CALC41900104
- Title
- Winterreise, D. 911 (Arr. for Voice and Chamber Ensemble): IV. Erstarrung
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x1c73c159c7ba0719047c5378294b47f80d65ffd6e07e8f44d7b4695e1d8ca28d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T04:14:58+00:00
- Bitcoin block
- 960344
- Canonical record hash
sha256:80aecb049b3c62cf9dd17d37a3da3b3f7f32345b192900ddda9cd9b8e1135a7e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41900104
- Bitcoin block existence check
- https://blockstream.info/api/block/960344
Full record
Track page: Winterreise, D. 911 (Arr. for Voice and Chamber Ensemble): IV. Erstarrung · Machine-readable JSON-LD