ISRC NLSB72300126
Verified recording
NLSB72300126 is “Missa Maria zart Qui tollis I” by Jacob Obrecht,
registered on the CopyrightChains blockchain with CopyrightID
0x1f9240db27b6a1f2216263b93249aa4acdc9fa6fd8ce550b79db0367b2304377 and independently timestamped
in Bitcoin block 960277 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLSB72300126.
Recording identifiers
- ISRC
- NLSB72300126
- Title
- Missa Maria zart Qui tollis I
- Artist
- Jacob Obrecht
- CopyrightID (CopyrightChains transaction hash)
0x1f9240db27b6a1f2216263b93249aa4acdc9fa6fd8ce550b79db0367b2304377
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T16:10:47+00:00
- Bitcoin block
- 960277
- Canonical record hash
sha256:66da9f9d0159d4d9f8dbde70bd40d89000bbfbadabbd02fc0a05fba63455c778- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLSB72300126
- Bitcoin block existence check
- https://blockstream.info/api/block/960277
Full record
Track page: Missa Maria zart Qui tollis I · Machine-readable JSON-LD