ISRC USC4R1016872
Verified recording
USC4R1016872 is “I Didn't Know What Time It Was” by Art Blakey,
registered on the CopyrightChains blockchain with CopyrightID
0x779b8530f0886b322edfef4b27288a5ebc8bd53c006b72e309de35fc05943091 and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R1016872.
Recording identifiers
- ISRC
- USC4R1016872
- Title
- I Didn't Know What Time It Was
- Artist
- Art Blakey
- CopyrightID (CopyrightChains transaction hash)
0x779b8530f0886b322edfef4b27288a5ebc8bd53c006b72e309de35fc05943091
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:dbd0549b54a9f8f582ec91d784c5b35401e66f6ffe61b1a2dfb4348ec0ec02a6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R1016872
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: I Didn't Know What Time It Was · Machine-readable JSON-LD