Débora Susan Sanches Duke (born January 2, 1950) best known as Débora Duarte, is a Brazilian actress. Early life Débora was born in São Paulo, Brazil. She is the daughter of actress Marisa Sanches
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 0x27603999ca6593ea663c6046b604c93b24d337bebf9267c0702bf49a9d836a1f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f0e3f36-92bc-496f-bbae-f0d6050d2145.json and https://artists.proofprofile.net/proofs/artist/5f0e3f36-92bc-496f-bbae-f0d6050d2145.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab64bee2473e7219b7305c50fb7ce1f00f0d6e32280e161c35fa2d205e43b9f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX44O2200821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c68afa638f1f103264509ad06260a2cc9d68d3a0282d7b2b9f642416432b5f7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX44O2200822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f261e98e8e41b1dd93017aa62ad15989832ba45b0c09a14f177900cb43cb7b7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX44O2200823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63854646559f53a9a12738c3cfa0cc669c5c255638a6f2295ba4492041522f3. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX44O2301759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099b15ca236139481d68b6e3c8ab5707b5e8c1c0e3eb3b8f88986b7780be3d2a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:44:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX44O2301761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e4d4658ece373bb309af192c43d9aa83c90487eadcb6758af8c06fdf212f43. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX44O2302056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6255434cd02ce9287e2cc3204f293b43f244d6d9a95fd352fb44d452424e8358. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX44O2302058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e59b2878f86d136906310cb2add761144303d59b36d8f76fe0c69b370c4d2d. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:54:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX44O2302060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66008e1093c17c89d096b8be3fad9e9c82fa20dfa1a490ec0f06c2d7460817af. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC6M22517335.