1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xa0042c6d47d11f53684490cd10844b87411f86580f5c155048b338e318d9a645. 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/49810a72-e121-4f22-8337-39721cf4d295.json and https://artists.proofprofile.net/proofs/artist/49810a72-e121-4f22-8337-39721cf4d295.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xe17cfcf5e8d64afe068768955ace723c35af5dc996d2171a3fe4dd63e49e64ef","isrc":"BK2NP2400239","name":"Treta na Casa do Seu Zé","registered_at":"2026-06-25T16:14:55Z","spotify_id":"60gTvgeCZubuRefZicKWgz","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17cfcf5e8d64afe068768955ace723c35af5dc996d2171a3fe4dd63e49e64ef. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/60gTvgeCZubuRefZicKWgz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/60gTvgeCZubuRefZicKWgz.
Senta na Pica e Prende Vs Vou Pular Novinho em Cima da Sua Piroca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4281609821c14b8e36fb14b136eafd76b31122f0bb33915476806cec31e78994. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0hCTX78UuGnarWSEeCOht3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0hCTX78UuGnarWSEeCOht3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544517cec0a4e3b88a1514eeec1826101a3c6b1d36c9990db966e12900e20898. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5bGXwCpQym7wXJ9uNTDxjb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5bGXwCpQym7wXJ9uNTDxjb.
{"copyright_id":"0xb388bbad326cbfce898c56d5a6e7511d2b7adda4f9bfc617a2fddcf91e8d442e","isrc":"BCIH82307809","name":"Magrão Hoje na Casa do Seu Zé","registered_at":"2026-06-20T05:14:30Z","spotify_id":"2lGbNudK3jjphxA5G88ejz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb388bbad326cbfce898c56d5a6e7511d2b7adda4f9bfc617a2fddcf91e8d442e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2lGbNudK3jjphxA5G88ejz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2lGbNudK3jjphxA5G88ejz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d4f0d34d93658acc8f28dd948064607d218109c7c68e84d3af816f0a91df40. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/195B13MvhRK41LV3dILsVW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/195B13MvhRK41LV3dILsVW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4317546aba10f68645f7e55126b9853dbe7b366ffc28ef72055eed8518e07b9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2TCojOls1riwFazZW9j0Jj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2TCojOls1riwFazZW9j0Jj.
Baile do Dennis (Ao Vivo) [Deluxe Edition]
{"copyright_id":"0xdc6e43bc43d2a89ac2aaa1d697bc138b6c9527375e447e8b510366ce33520441","isrc":"BRT3O1500039","name":"Pra Gente Dançar - Ao Vivo","registered_at":"2026-06-20T21:41:18Z","spotify_id":"7mzcdyErwrkK5k7TRIYL4Z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6e43bc43d2a89ac2aaa1d697bc138b6c9527375e447e8b510366ce33520441. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7mzcdyErwrkK5k7TRIYL4Z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7mzcdyErwrkK5k7TRIYL4Z.
{"copyright_id":"0x657082cde73532bc51af290ec13cc6e74f8f0a822e4a6ab9f912c74bcb6a509a","isrc":"BRT3O1600003","name":"Loucona - Ao Vivo","registered_at":"2026-06-21T20:21:38Z","spotify_id":"6cEKHGEn1Slz8liZqvWfIK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657082cde73532bc51af290ec13cc6e74f8f0a822e4a6ab9f912c74bcb6a509a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6cEKHGEn1Slz8liZqvWfIK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6cEKHGEn1Slz8liZqvWfIK.
Pra Gente Dançar / Vai Sentando Forte (feat. MC Britney, Tarapi & MC RD) - Ao Vivo
{"copyright_id":"0xd69b0b4f0bdcb5fc38440361816de97bfd29ce73139aa0bda04a1df5bac52f67","isrc":"BRT3O1500063","name":"Pra Gente Dançar / Vai Sentando Forte (feat. MC Britney, Tarapi & MC RD) - Ao Vivo","registered_at":"2026-06-10T15:38:44Z","spotify_id":"4xJgc7XLDzn3oQUQ3OKmfY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69b0b4f0bdcb5fc38440361816de97bfd29ce73139aa0bda04a1df5bac52f67. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4xJgc7XLDzn3oQUQ3OKmfY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4xJgc7XLDzn3oQUQ3OKmfY.
{"copyright_id":"0xe115ee36315287a4f6babc69d85abbccbc4b4dfaa963b0a3c84a6ad63c48a394","isrc":"BCVHO2400012","name":"Desce Vai (feat. Mc Britney)","registered_at":"2026-06-19T08:18:52Z","spotify_id":"6vRcWkLChrRNFeIMjo1uYs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe115ee36315287a4f6babc69d85abbccbc4b4dfaa963b0a3c84a6ad63c48a394. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6vRcWkLChrRNFeIMjo1uYs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6vRcWkLChrRNFeIMjo1uYs.