ISRC US5UL0703478
Verified recording
US5UL0703478 is “Old Timer Rag” by Colin Willsher,
registered on the CopyrightChains blockchain with CopyrightID
0x00fd03b301bfcb0f5d970cf41a5314fac1b23cf8eaa4f99fed71698aeb0f6909 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5UL0703478.
Recording identifiers
- ISRC
- US5UL0703478
- Title
- Old Timer Rag
- Artist
- Colin Willsher
- CopyrightID (CopyrightChains transaction hash)
0x00fd03b301bfcb0f5d970cf41a5314fac1b23cf8eaa4f99fed71698aeb0f6909
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:0385c7ac2affa03afbf50114d39b56e3a84d4f4255dc900f3045363ac846ff60- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5UL0703478
- Bitcoin block existence check
- https://blockstream.info/api/block/956304