Betty Mars (born Yvette Baheux, 30 July 1944 – 20 February 1989) was a French singer and actress, best known for her participation in the 1972 Eurovision Song Contest. Early life Mars was the youn
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2cb083056f9ff812eb8f1ed4ef9c50903dc0402582ea8da13835944fbd5a2d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65cbba0b-7fa7-45e6-a1e6-1698b1048cc7.json and https://artists.proofprofile.net/proofs/artist/65cbba0b-7fa7-45e6-a1e6-1698b1048cc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Le Disque D'or De Betty Mars: Anthologie, Vol. 1