ISRC USHM21968643
Verified recording
USHM21968643 is “Sleepy Sea of Indigo and Blue” by Antje Duvekot,
registered on the CopyrightChains blockchain with CopyrightID
0x22dfa7ccc7c60588e42bf34559bc8e796b2dd79ecbde798afe6aebca226e2273 and independently timestamped
in Bitcoin block 953536 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21968643.
Recording identifiers
- ISRC
- USHM21968643
- Title
- Sleepy Sea of Indigo and Blue
- Artist
- Antje Duvekot
- CopyrightID (CopyrightChains transaction hash)
0x22dfa7ccc7c60588e42bf34559bc8e796b2dd79ecbde798afe6aebca226e2273
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T17:25:41+00:00
- Bitcoin block
- 953536
- Canonical record hash
sha256:616bad8dcd6084fc7f27e305a90937e0b7e116db440f887238dd336e29ce1ecb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21968643
- Bitcoin block existence check
- https://blockstream.info/api/block/953536
Full record
Track page: Sleepy Sea of Indigo and Blue · Machine-readable JSON-LD