ISRC DEF057530005
Verified recording
DEF057530005 is “Requiem, K. 626: IIIb. Tuba mirum” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x6e219df033cf90e365d0bc2b70eff79ca84414550c91c09cb6e2efe6b615c0c3 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530005.
Recording identifiers
- ISRC
- DEF057530005
- Title
- Requiem, K. 626: IIIb. Tuba mirum
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x6e219df033cf90e365d0bc2b70eff79ca84414550c91c09cb6e2efe6b615c0c3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:0b039257850453907fbc56b35664b6a83d9e940f04c591c7d9fb5dced4a661b1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530005
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Requiem, K. 626: IIIb. Tuba mirum · Machine-readable JSON-LD