Zaynara Damasceno Cruz (born August 8, 2001) is a Brazilian singer and songwriter. She won the Multishow Brazilian Music Award for New Artist in 2024. Biography Zaynara is the daughter of musicians
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 0x41277d399e6b1071194c54590aee098919c5524c6a2ef6051a170d9f3c9419db. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/948220ad-14f0-42cb-b03a-66beb73f227d.json and https://artists.proofprofile.net/proofs/artist/948220ad-14f0-42cb-b03a-66beb73f227d.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 0x0a9ab9f491dffb93a0fe54599b94d64911d5e15f3017c64c5ac3eac42f3d961d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BR0OX2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aff47ccf9b400f173379f654a14cab71bbed1baa814d025b5ee688f0d243a26. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/BR0OX2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1a6e1a61138419fa2c93f9a9aab9382f85a39c4cdfe39cc35062c6f143b1c2. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/BR0OX2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef9fc1a1e0469bb64532272960ba3c31a83f34ad39c3aa6c355457de4baeb53. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BR0OX2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee149afb951a02f7b02cfe1fefd8267714a90dfeadc87ce01ba3d7760eb313ea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRSME2400905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2bd9d14abb47fe74f84da5044820ee58dbee203e4b3678ff3932e553a5ef11. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/BRSME2401496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e948dae1c99072385996c47cb0d3f1825f0b354ed8a2990f8dac996ce99d7fa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRF6E2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c6a58c3ea3b964ad70e751f581e3041faf0bc4ea22a087f4749beea61bc2be. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BCJBY2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e948dae1c99072385996c47cb0d3f1825f0b354ed8a2990f8dac996ce99d7fa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRF6E2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd13425a09f29d75346cab285bdf19861e4de20097802d650d019031250a9976. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXZFL2400037.