ISRC DEF059505570
Verified recording
DEF059505570 is “Valse triste, Op. 44” by Jean Sibelius,
registered on the CopyrightChains blockchain with CopyrightID
0x99dc4713d0adb1b32b57f0b789f09d5cb2bc9a1dc781700f6d080aa55d830005 and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059505570.
Recording identifiers
- ISRC
- DEF059505570
- Title
- Valse triste, Op. 44
- Artist
- Jean Sibelius
- CopyrightID (CopyrightChains transaction hash)
0x99dc4713d0adb1b32b57f0b789f09d5cb2bc9a1dc781700f6d080aa55d830005
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:1ea21f77193c6f2d0d0d317ef956d97db50914858bd07719e6d933cb9257de9e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059505570
- Bitcoin block existence check
- https://blockstream.info/api/block/960448