ISRC SEVWU0300215
Verified recording
SEVWU0300215 is “4 Shakespeare Songs: No. 3. Double, double toil and Trouble” by Jaakko Mäntyjärvi,
registered on the CopyrightChains blockchain with CopyrightID
0x5d6fb788e34868ad6c1352c16e17bd3e5c1d61fb3feaee69d30b75fb243e48d0 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/SEVWU0300215.
Recording identifiers
- ISRC
- SEVWU0300215
- Title
- 4 Shakespeare Songs: No. 3. Double, double toil and Trouble
- Artist
- Jaakko Mäntyjärvi
- CopyrightID (CopyrightChains transaction hash)
0x5d6fb788e34868ad6c1352c16e17bd3e5c1d61fb3feaee69d30b75fb243e48d0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:32bf09cd2d17acc1ac0a34a859e12db2efb19fa1cdc302a4fa8f1d872f9695d1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVWU0300215
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: 4 Shakespeare Songs: No. 3. Double, double toil and Trouble · Machine-readable JSON-LD