ISRC USUM70605000
Verified recording
USUM70605000 is “Come Heavy Sleep” by John Dowland,
registered on the CopyrightChains blockchain with CopyrightID
0xf6cccd3ce3536d8b2135a30be51bbb6b5d38cdfbd238bf8668d5832ff48ffe3a and independently timestamped
in Bitcoin block 959159 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM70605000.
Recording identifiers
- ISRC
- USUM70605000
- Title
- Come Heavy Sleep
- Artist
- John Dowland
- CopyrightID (CopyrightChains transaction hash)
0xf6cccd3ce3536d8b2135a30be51bbb6b5d38cdfbd238bf8668d5832ff48ffe3a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T17:48:40+00:00
- Bitcoin block
- 959159
- Canonical record hash
sha256:3e93e4f86a86235469aee7bf18a53ff183675709c707cb1e2982e9e6252ef01b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM70605000
- Bitcoin block existence check
- https://blockstream.info/api/block/959159