La Chambelona (English: the lollipop) is a Cuban conga song performed in comparsa that gained prominence during the 1916 presidential campaign. The song's rhythm and lyrics quickly resonated with the
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 0x1e8896b2bd493f478d7a0186b9df4798445832e6b083811fe5b568c7055a1e25. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c18990e2-6661-4d67-a0cb-f3ce6e564ed0.json and https://artists.proofprofile.net/proofs/artist/c18990e2-6661-4d67-a0cb-f3ce6e564ed0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).