ISRC CALC42309022
Verified recording
CALC42309022 is “Piano Concerto No. 20 in D Minor, K. 466: II. Romance” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x46cdea18dfb968270ff119ccc900e842b2d3e2c9bdf97e912e441d5c4646aaaf and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC42309022.
Recording identifiers
- ISRC
- CALC42309022
- Title
- Piano Concerto No. 20 in D Minor, K. 466: II. Romance
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x46cdea18dfb968270ff119ccc900e842b2d3e2c9bdf97e912e441d5c4646aaaf
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:e181e9377afe8c6b5e3e3abacf53041b135beab39df98306ce11f6090cf70e7f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC42309022
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Piano Concerto No. 20 in D Minor, K. 466: II. Romance · Machine-readable JSON-LD