ISRC NL1TL1901109
Verified recording
NL1TL1901109 is “Serenade No. 7 in D Major "Haffner“ III. Minuet, Kv 250” by Sandman’s Music Box,
registered on the CopyrightChains blockchain with CopyrightID
0x0e58830dd4ba37747c61333d67e06406998d90297ff5aedc4acf1234e2be91b9 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/NL1TL1901109.
Recording identifiers
- ISRC
- NL1TL1901109
- Title
- Serenade No. 7 in D Major "Haffner“ III. Minuet, Kv 250
- Artist
- Sandman’s Music Box
- CopyrightID (CopyrightChains transaction hash)
0x0e58830dd4ba37747c61333d67e06406998d90297ff5aedc4acf1234e2be91b9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:8c3b7b32773d1ace7e5128b7abc0df6adcf38d7907901f61cbc82b4f26f15e5a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL1TL1901109
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Serenade No. 7 in D Major "Haffner“ III. Minuet, Kv 250 · Machine-readable JSON-LD