Kiko Zambianchi (born Francisco José Zambianchi in Ribeirão Preto) is a Brazilian composer and singer. Discography (1985) Choque (1986) Quadro Vivo (1987) Kiko Zambianchi (1989) Era das Flores (1997)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29497577031f91d8822b8bafad936a878803e5ec1de84c032f78a1931a3b036e. 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/84f723e1-a9b4-436a-b9ee-6120fcd4f96d.json and https://artists.proofprofile.net/proofs/artist/84f723e1-a9b4-436a-b9ee-6120fcd4f96d.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a54408a8b0d17aa40d527d68629bb3b7301910fb7f34657ed00f77f558a595. 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/BCTQL2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bb76f690563b634e67b284ee7d03cf93f759de0d1e0c34c1bf856cd13cb92a. 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/BRB221300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ac7fb6bbb742f930a6d21b5d0153cee59336af909db279a76fdb4c16ada5ee. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRB221300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea62cc858f98f22543a366b892e7d1222654eae912bc8f817d30cac5f0094a9. 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/BRB221300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3aba7d3b39d526d25314c5bb429fc3c898a4cddbcfe7202a9cb36a1fb84a30. 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/BRB221300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf0236aef9e460de29d39dd2d56c63da1339e8c22b16b4671d797301c040e13. 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/BRB221300033.
Como Devia Estar (feat. Capital Inicial) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd738e7a4d0155612303a579cd60dcd9e2dfc22d6c96e13001631a0a9c8d384. 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/BRB221300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfca4ce9d6a7b38a2eddf5129405505bd24036f0e6850b8c0c30a76514959d1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRB221300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d52f429a099d3e05f527527ee57eb1f2c58b4a36825693e3be0c61bd5630bec. 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/BRB221300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7efa6ef1109209dbfd61bf306633ad75b0467005317c7d6c2c128df23e6e2e8. 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/BREMI8500816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ea021027fd9a87253345611496cba66002d15cf0358e8d98d03947c40e6098. 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/BREMI8400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787d10719d264671a9db53397f7fcd3dcb3948bc4d8ee2b83e30b8a59438dab9. 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/BREMI8400664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72abbc11ab8df54df78681cf69d1c2d555ded49b0930cb623783df66eb487353. 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/BRAMD0100790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7b90183532dc5407d20189ff9ec3d28eea5facaa92928e53e936151729c5de. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US7VG2237359.
Em Dezembro de 81 (feat. MC Koringa, Leo Jaime & Dado Dolabella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fceeaec5d06a683920d2621a27584bfab969fe783c04cf2613d18d42ee925a0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRIVM1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f42a7335fd861f7a6d7cadbe477f758ca781a46a1bea1c91e5aed0d80473470. 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/QZGLS1945469.