"La dot" is a song performed by French-Malian singer Aya Nakamura. It was released on 19 December 2018. The song peaked at number 3 in France and number 32 in Wallonia. The song's music video garnered
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bb5dd33d471c1590fef7999c622b919e8c95bd78820742258ed9ff34ac0b41. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8766de26-7c04-4de5-9307-232ae344fb5c.json and https://artists.proofprofile.net/proofs/artist/8766de26-7c04-4de5-9307-232ae344fb5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).