Estácio de Sá (1520 – 20 February 1567) was a Portuguese soldier and officer. Sá travelled to the colony of Brazil on the orders of the Portuguese crown to wage war on the French colonists commanded b
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 0xb80a9ba9a9def31b97c1ae6d16a8ff0d92ff5d964bc368942f720f75f73c3d47. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cce45c08-b120-442a-82bf-6748d53e3557.json and https://artists.proofprofile.net/proofs/artist/cce45c08-b120-442a-82bf-6748d53e3557.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Os Sambas Que Não Desfilaram (Estácio de Sá)
G.R.E.S Estácio 2024 Samba de China e Cia