ISRC QM2ZU1702881
Verified recording
QM2ZU1702881 is “Once Before” by Chien Lin,
registered on the CopyrightChains blockchain with CopyrightID
0x3b67ce0aa0e3bb6946fc8a22d4d822beb2abbdcc242cf64e20a5187ababb4b29 and independently timestamped
in Bitcoin block 960459 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM2ZU1702881.
Recording identifiers
- ISRC
- QM2ZU1702881
- Title
- Once Before
- Artist
- Chien Lin
- CopyrightID (CopyrightChains transaction hash)
0x3b67ce0aa0e3bb6946fc8a22d4d822beb2abbdcc242cf64e20a5187ababb4b29
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T20:22:46+00:00
- Bitcoin block
- 960459
- Canonical record hash
sha256:bf08454b37e181de90c59ad448e1d7c22b5e16caa6fc4f6022895c2d5990f94e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM2ZU1702881
- Bitcoin block existence check
- https://blockstream.info/api/block/960459