ISRC DEF059504370
Verified recording
DEF059504370 is “Plainchant for Vespers I (Recollectio festorum beate Marie virginis): Deus in adiutorium meum” by Guillaume Dufay,
registered on the CopyrightChains blockchain with CopyrightID
0x1d68697b80d0fbeca1354217e0ac01c4367a1821dcc17492dd4cad6dd8c7bce2 and independently timestamped
in Bitcoin block 960348 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059504370.
Recording identifiers
- ISRC
- DEF059504370
- Title
- Plainchant for Vespers I (Recollectio festorum beate Marie virginis): Deus in adiutorium meum
- Artist
- Guillaume Dufay
- CopyrightID (CopyrightChains transaction hash)
0x1d68697b80d0fbeca1354217e0ac01c4367a1821dcc17492dd4cad6dd8c7bce2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T05:17:02+00:00
- Bitcoin block
- 960348
- Canonical record hash
sha256:109661347d02db1386ded493a0e7157619382dd62b4afce26abb245549d25675- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059504370
- Bitcoin block existence check
- https://blockstream.info/api/block/960348
Full record
Track page: Plainchant for Vespers I (Recollectio festorum beate Marie virginis): Deus in adiutorium meum · Machine-readable JSON-LD