ISRC NLSB72300129
Verified recording
NLSB72300129 is “Missa Maria zart Qui propter” by Jacob Obrecht,
registered on the CopyrightChains blockchain with CopyrightID
0xd85c8592b634c67f040942bc3c6b0674696bcfcf23bfc9fa9c724d020a368ed5 and independently timestamped
in Bitcoin block 960383 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLSB72300129.
Recording identifiers
- ISRC
- NLSB72300129
- Title
- Missa Maria zart Qui propter
- Artist
- Jacob Obrecht
- CopyrightID (CopyrightChains transaction hash)
0xd85c8592b634c67f040942bc3c6b0674696bcfcf23bfc9fa9c724d020a368ed5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T09:50:37+00:00
- Bitcoin block
- 960383
- Canonical record hash
sha256:fa4416e7fdee46446a51a59785d3a4b9c61a7411f831cb2fd6f094c265ddf6d2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLSB72300129
- Bitcoin block existence check
- https://blockstream.info/api/block/960383
Full record
Track page: Missa Maria zart Qui propter · Machine-readable JSON-LD