ISRC NLHK11900004
Verified recording
NLHK11900004 is “The Seasons, Op. 37b: No. 4, April, "Snowdrop"” by Pyotr Ilyich Tchaikovsky,
registered on the CopyrightChains blockchain with CopyrightID
0xf13b0f991b5f100104132a3d6cefb561d7916c5cea1656f0b4bc53be25bd69d7 and independently timestamped
in Bitcoin block 960185 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHK11900004.
Recording identifiers
- ISRC
- NLHK11900004
- Title
- The Seasons, Op. 37b: No. 4, April, "Snowdrop"
- Artist
- Pyotr Ilyich Tchaikovsky
- CopyrightID (CopyrightChains transaction hash)
0xf13b0f991b5f100104132a3d6cefb561d7916c5cea1656f0b4bc53be25bd69d7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T01:32:48+00:00
- Bitcoin block
- 960185
- Canonical record hash
sha256:db9b4961145e930cc160291c25c888a5032ab2273a971a1df677528d5702b861- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHK11900004
- Bitcoin block existence check
- https://blockstream.info/api/block/960185
Full record
Track page: The Seasons, Op. 37b: No. 4, April, "Snowdrop" · Machine-readable JSON-LD