ISRC HKI199513027
Verified recording
HKI199513027 is “Introduction to the Study of the guitar, Op. 60: No. 21 in C Major” by Fernando Sor,
registered on the CopyrightChains blockchain with CopyrightID
0xef4f2bfb4dfe4eea8e42de1f0519d611d078c43db8e5faa2140f52a5127a05d5 and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199513027.
Recording identifiers
- ISRC
- HKI199513027
- Title
- Introduction to the Study of the guitar, Op. 60: No. 21 in C Major
- Artist
- Fernando Sor
- CopyrightID (CopyrightChains transaction hash)
0xef4f2bfb4dfe4eea8e42de1f0519d611d078c43db8e5faa2140f52a5127a05d5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:9e1c396da57318bc7b18d066e3ecb865245e96a9b05c608bd06416e1e2143cf8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199513027
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: Introduction to the Study of the guitar, Op. 60: No. 21 in C Major · Machine-readable JSON-LD