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 0x4e0d236ef82181fd5782852a43c0a0d7b721ff52a447a357b4806fedd1379c22. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca6a58ce-5c33-4cfb-bab4-348e744f7c3e.json and https://artists.proofprofile.net/proofs/artist/ca6a58ce-5c33-4cfb-bab4-348e744f7c3e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lança na Mão Direita, Umbrella na Mão Esquerda
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 0x75cb4b98558a43e7b1c615ce34cd326166cae2ecd45e836bbb04d87af5e9037c. 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/QZNJV2110187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72fa305cab2c235b751c32d6b7ce4870f224053a820c36ba554f6c65b938f5c. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZNJW2186444.
Sempre Que Me Ver no Baile, Eu Vou Roçando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f707e990a878a59a031429a79f237ade1a586d66f5525a9d62e045f66fb5e72. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BCYP92200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc855dcc8d878a0fd1e3b7f5f41a8238617dbd6501d2b0ec5d75d520d42f2dfa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTVM2225419.
Mega Gangsta Paradise (Eu Desço na Glock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961218ab532a8fd19c5f694033f626bcc72ab9f3e9e1f7f907fc1f98e68e8101. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QZW9M2205371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2583ace400cfc595456a523ffb56c91fd83a9b9faeb8164ee4119e00674d387a. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/BCYP92300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eea892099a689b9aebf1a325bba26b27957cb912250ce8118e691e95775145c. 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/BCYP92300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b2b7b67384a0da720849749e4ed6c978a8cf2b31c51876831463cff7e161f1. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BX4IU2357716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880f51b74e138c7974554c837232968daa76c06a61bac879d9a4a18a8bfee5d2. 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/BX4IU2357710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87406f38017a60dda7c071011dbd7c9bcaa4a3899843c3c9691da987449956cd. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:23:37Z), 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/BCYP92300029.
Depois do Natal (Phonk Beautiful Christmas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cdc4a265086484ae51b0f8d834c08d71d4065bc058a815411a82088ee442d4. 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/BCYP92300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef08d42c3505668861e64b9a9f222f65b44cd34a5248f5775cd93dd9fec17ce. 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/QZHZ52184469.
Ela Pede Que Bota (feat. MC Kitinho & MC Mazzie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdb7ee1722808db89803f6a1b26b807f1b0aea489c66a67bdfe48f3781624d1. 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/BCO392200002.
Ultra Rave Lança Perfume (feat. Mc 7 Belo, MC W1, MC Mazzie & MC Kitinho)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547ef44571b672910a9782d9ccbe27e20e6451037a8e5ef50be8494dd0bd46b7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BCO392200003.
Machuca Psicodélico / Balaco Baco (feat. MC Mazzie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6f9cc01380aa9d9af57d8459476ee2b43c1a674cc4dddbf2f756be55bea01e. 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/BCO392300002.