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 0x918e5530cc0450caedc0604798beff4f0451515eff765fc18c561e604dabb061. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47ca2abb-33f7-48c5-9067-8d26ed6d9471.json and https://artists.proofprofile.net/proofs/artist/47ca2abb-33f7-48c5-9067-8d26ed6d9471.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x1037005e4740859ec7217245a007b8bb953bc7c15f121c5e17f097b7f1e654b0. 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/3NV4YkaHkgcTRTdL0iYVUB.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/3NV4YkaHkgcTRTdL0iYVUB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0591808f9b32863b82dae85d99e451459b2603baf7d60f4c939216ba326ba454. 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/7hTDnQopHiiNMqRDITkug9.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/7hTDnQopHiiNMqRDITkug9.
{"copyright_id":"0x8a51cb1844b46baec7c1843d10d2fd5a821cf10cd3a4c690b8a37a6c83336183","isrc":"BC8XV2400001","name":"Mais Que uma Canção","registered_at":"2026-06-28T19:46:39Z","spotify_id":"40sck4nDMqUFojLZcIojWX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a51cb1844b46baec7c1843d10d2fd5a821cf10cd3a4c690b8a37a6c83336183. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/40sck4nDMqUFojLZcIojWX.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/40sck4nDMqUFojLZcIojWX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a03a009b0e3688af37928bfce48ced10e2d39682a564d01dd6089be3de19513. 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/44Y0zZG7eb3dTLg1qEidiE.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/44Y0zZG7eb3dTLg1qEidiE.
{"copyright_id":"0xf137172a2f598a73f39263e8f07b9cb2dd68b5ac096bc2ac55bad380ba7bfd45","isrc":"US7VG2238443","name":"Cristo no Topo 2","registered_at":"2026-06-22T07:39:21Z","spotify_id":"1dI1blPH0c1xfGsTcvPIvW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf137172a2f598a73f39263e8f07b9cb2dd68b5ac096bc2ac55bad380ba7bfd45. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1dI1blPH0c1xfGsTcvPIvW.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/1dI1blPH0c1xfGsTcvPIvW.
{"copyright_id":"0x02349f57e32cfc93f101ab9433bc93a3b5449ef9fcad51be838fbbf29ba67e92","isrc":"BXSMM2300002","name":"O Chamado","registered_at":"2026-06-07T02:53:39Z","spotify_id":"41rUpecGEMcKPrWnq0BXrZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02349f57e32cfc93f101ab9433bc93a3b5449ef9fcad51be838fbbf29ba67e92. 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/41rUpecGEMcKPrWnq0BXrZ.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/41rUpecGEMcKPrWnq0BXrZ.
{"copyright_id":"0x7daf12fd2673d6e35da16ba1cdab439f31279b319b461d9f4cbb7eae15db398d","isrc":"QM3DF2198745","name":"Ide e Pregai 3","registered_at":"2026-06-10T21:32:25Z","spotify_id":"0Hu8ZgQX6GwullzOxyEkPd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daf12fd2673d6e35da16ba1cdab439f31279b319b461d9f4cbb7eae15db398d. 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/0Hu8ZgQX6GwullzOxyEkPd.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/0Hu8ZgQX6GwullzOxyEkPd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2c4f7df5153e91ccf062929a2e3468beb490d1581d07981f053770e835a04f. 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/7c0K3z88w5Vk47cbivOHdk.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/7c0K3z88w5Vk47cbivOHdk.
Ide e Pregai o Evangelho 7 (Edição Especial)
{"copyright_id":"0x51c70634b842115015091edbf0874097f7918a07e7c23cda829d3265cb0680ed","isrc":"BR7552400133","name":"Ide e Pregai o Evangelho 7 (Edição Especial)","registered_at":"2026-06-23T14:02:48Z","spotify_id":"3jmWniC2RMJwQjG6GHElqr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c70634b842115015091edbf0874097f7918a07e7c23cda829d3265cb0680ed. 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/3jmWniC2RMJwQjG6GHElqr.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/3jmWniC2RMJwQjG6GHElqr.
{"copyright_id":"0x1bd3485cd1966026db541fe693bfc55ccd48efb715f9df925c6eb2274b2fe309","isrc":"BXNT62209102","name":"Semeadores 3","registered_at":"2026-06-04T11:37:28Z","spotify_id":"72kAFAuVMztoDYhcO8nPCB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd3485cd1966026db541fe693bfc55ccd48efb715f9df925c6eb2274b2fe309. 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/72kAFAuVMztoDYhcO8nPCB.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/72kAFAuVMztoDYhcO8nPCB.