ISRC USQX92401779
Verified recording
USQX92401779 is “Waltz in A Major, Op. 39, No. 15 (Version for piano 4-hands)” by Johannes Brahms,
registered on the CopyrightChains blockchain with CopyrightID
0x4061134f320f2a166e1e9b9db3f2112b8c3a1fb72cdccd7405b7cc09f62c5f12 and independently timestamped
in Bitcoin block 953536 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92401779.
Recording identifiers
- ISRC
- USQX92401779
- Title
- Waltz in A Major, Op. 39, No. 15 (Version for piano 4-hands)
- Artist
- Johannes Brahms
- CopyrightID (CopyrightChains transaction hash)
0x4061134f320f2a166e1e9b9db3f2112b8c3a1fb72cdccd7405b7cc09f62c5f12
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T17:25:41+00:00
- Bitcoin block
- 953536
- Canonical record hash
sha256:c24d11702d488e576685a5ef650e4e63a3190d17a3032ee0b436718428ec9b91- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92401779
- Bitcoin block existence check
- https://blockstream.info/api/block/953536
Full record
Track page: Waltz in A Major, Op. 39, No. 15 (Version for piano 4-hands) · Machine-readable JSON-LD