ISRC DEU921368031
Verified recording
DEU921368031 is “Est-ce Mars, SwWV 321: Variation 7” by Jan Pieterszoon Sweelinck,
registered on the CopyrightChains blockchain with CopyrightID
0xd6d5748ec11d33288dac73d34dcbb13fe7d153b4317351177dac98c256760cda and independently timestamped
in Bitcoin block 960340 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU921368031.
Recording identifiers
- ISRC
- DEU921368031
- Title
- Est-ce Mars, SwWV 321: Variation 7
- Artist
- Jan Pieterszoon Sweelinck
- CopyrightID (CopyrightChains transaction hash)
0xd6d5748ec11d33288dac73d34dcbb13fe7d153b4317351177dac98c256760cda
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T03:15:04+00:00
- Bitcoin block
- 960340
- Canonical record hash
sha256:e15fcc852128e8b7d42d42189c446ac3e3d0f4eed046bab96454c12e61d9d95c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU921368031
- Bitcoin block existence check
- https://blockstream.info/api/block/960340
Full record
Track page: Est-ce Mars, SwWV 321: Variation 7 · Machine-readable JSON-LD