ISRC TWU711902081
Verified recording
TWU711902081 is “Leider ohne Worte, Op. 62: No. 6 in A Major "Frühlingslied"” by Mak Ka-Lok,
registered on the CopyrightChains blockchain with CopyrightID
0x4bff508612ade0ef66cfd5f0bb7ba884b45f0b9ccb1b3fa7bbdefbbef42c57f9 and independently timestamped
in Bitcoin block 960144 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWU711902081.
Recording identifiers
- ISRC
- TWU711902081
- Title
- Leider ohne Worte, Op. 62: No. 6 in A Major "Frühlingslied"
- Artist
- Mak Ka-Lok
- CopyrightID (CopyrightChains transaction hash)
0x4bff508612ade0ef66cfd5f0bb7ba884b45f0b9ccb1b3fa7bbdefbbef42c57f9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:09:47+00:00
- Bitcoin block
- 960144
- Canonical record hash
sha256:6b0c69cc8a19e84dba936cde357206362aef9d629b7ee88557132fe44591d22b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWU711902081
- Bitcoin block existence check
- https://blockstream.info/api/block/960144
Full record
Track page: Leider ohne Worte, Op. 62: No. 6 in A Major "Frühlingslied" · Machine-readable JSON-LD