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 0x494483c7c26b347ab24031d4549452b30cf53e9f57b5ba34740ba3d2e6a8c109. 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/fee79662-4f6e-460b-9987-7a021fe78e0d.json and https://artists.proofprofile.net/proofs/artist/fee79662-4f6e-460b-9987-7a021fe78e0d.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 0xf083fba0a68bc0ec1e8475da593537a2c2d5099f20208baaf0d5bf363a056afe. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZEQU2074076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc985fb69bca7a68a61c40e852cda6d237a6cec9e369fc469e383d212fabf87c6. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:26Z), 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/QZEQU2127231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6dcc6cdb72163674224afd56b487b06b3cea61a7708fac6418a8c361d05284. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZEQU2131653.
Papa Anjo (feat. Mc Dricka) [Arrochadeira Remix]
Prisão Perpétua (feat. MC Theuzyn) [Arrochadeira Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b235d47e2f155dd952adca47df2cf30eae26ae115daa7ac4afbc1e173c2a20. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QZEQU2142895.
Ela Me Falou Que Quer Rave (feat. MC Levin) [Arrochadeira Remix]
Predador de Perereca (feat. Mc Jhey) [Remix]
Vou Fazer um Video Seu (feat. MC Vitin LC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeec73acf1fe518989cbdd3c00e01d8fcaa7ef545236c5acee74b5e28c8eacc. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZEQU2224835.
Vou Machucar Só um Pouquinho (feat. MC Teteu) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b26e7e95b6f44a44d48934efe3429c0df3f63c94c2e0767a922b89319fa5c8. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZEQU2205264.
Joga pra Tropa dos Cara de Tralha (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929e0444b93eecd5b5db28d7dbd66aa1a66b2f1bafd20e93805a87e68a8d952a. 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/QZGLM2322077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f777a04fb685cf1929c47778c504928c859b13b9aab30eb35fc1cd6157ac87. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:47:11Z), 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/QZNJY2300116.
Juliana Falou pra Rafaela (feat. Mc Mika)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7570b262f53c2444360c09a429a1ef3c4059673687f1b23f25b538135a4b88. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:09:16Z), 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/ES56F2300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ed6cb20b5940d8ed7138b6b7fb6bb06f0704af6e09da86f5c8b2cee11fc40c. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ES56F2300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9226b61b2a0ca204df7f696c6f685dc5623abbc057bf09624b1fe056c55504c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:53:57Z), 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/ES56F2300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dad992e7c61508895fb1ef4473f15d07c220595f952dc8746d34011a7e085a4. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/ES56F2400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779171c1af6bda5b90de8af735d3ffe3f61d4d450e88ca747ee305515db1f3de. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNJZ2456172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7609144efee1bd47b4f33832880433fad69fe5d4369fb77ab8c7c9e9498ed823. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZTVM2424151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580bf18ed0d30ea47c4a4f6fbb545498b1f258556559e5ca8350d0a32c69a2b6. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:32:24Z), 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/US7VG2538088.