ISRC GBBBB9706214

Verified recording

GBBBB9706214 is “Troisième Leçon de Ténèbres du Mercredi Saint: II. Caph” by François Couperin, registered on the CopyrightChains blockchain with CopyrightID 0x229769139c3c4c6aa563556a80cef2104580aed0b3e4cae39767cf437a096435 and independently timestamped in Bitcoin block 960397 on 2026-07-31. Verify the canonical record, hash, and Bitcoin attestation at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBB9706214.

Recording identifiers

ISRC
GBBBB9706214
Title
Troisième Leçon de Ténèbres du Mercredi Saint: II. Caph
Artist
François Couperin
CopyrightID (CopyrightChains transaction hash)
0x229769139c3c4c6aa563556a80cef2104580aed0b3e4cae39767cf437a096435

Dual-chain proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41+00:00
Bitcoin block
960397
Canonical record hash
sha256:76d45331bf0b08106c94bffbbf23e683f45b555f756143dad40fcf3be2a6f7f3
Verification API (6-check server-side result)
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBB9706214
Bitcoin block existence check
https://blockstream.info/api/block/960397

Full record

Track page: Troisième Leçon de Ténèbres du Mercredi Saint: II. Caph · Machine-readable JSON-LD