ISRC CALC40800305
Verified recording
CALC40800305 is “Symphony No. 7 in A Major, Op. 92: II. Allegretto” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x0bc40f2a652c344a0d418a115746e24437831d182492af4bfda99ef0995ff797 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC40800305.
Recording identifiers
- ISRC
- CALC40800305
- Title
- Symphony No. 7 in A Major, Op. 92: II. Allegretto
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x0bc40f2a652c344a0d418a115746e24437831d182492af4bfda99ef0995ff797
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:11247c8332c7618664a908cbcd066079d2b08965cb3a9ce3ea8ea5f00b519308- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC40800305
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Symphony No. 7 in A Major, Op. 92: II. Allegretto · Machine-readable JSON-LD