ISRC GBBBC2300304

Verified recording

GBBBC2300304 is “Variations on a Nursery Song, Op. 25: Var. 3. L'istesso tempo” by Ernst von Dohnányi, registered on the CopyrightChains blockchain with CopyrightID 0x8efcc149f1d6b0bf73a771a407d687229c740be5f184dbfc8f70a216b86c8108 and independently timestamped in Bitcoin block 960298 on 2026-07-30. Verify the canonical record, hash, and Bitcoin attestation at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2300304.

Recording identifiers

ISRC
GBBBC2300304
Title
Variations on a Nursery Song, Op. 25: Var. 3. L'istesso tempo
Artist
Ernst von Dohnányi
CopyrightID (CopyrightChains transaction hash)
0x8efcc149f1d6b0bf73a771a407d687229c740be5f184dbfc8f70a216b86c8108

Dual-chain proof evidence

Bitcoin-attested timestamp
2026-07-30T19:26:00+00:00
Bitcoin block
960298
Canonical record hash
sha256:e61ada82c24d0716b878e67d2174c5e2c11fbdb2e5ccdd3488440d5b730e61f7
Verification API (6-check server-side result)
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2300304
Bitcoin block existence check
https://blockstream.info/api/block/960298

Full record

Track page: Variations on a Nursery Song, Op. 25: Var. 3. L'istesso tempo · Machine-readable JSON-LD