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 0xb64ab25c1ea097176a768e9ea0fae027488caaa80d2188385d2c3b764573efd7. 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/b27cbe30-5b25-4f92-9115-6ef54da916fe.json and https://artists.proofprofile.net/proofs/artist/b27cbe30-5b25-4f92-9115-6ef54da916fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pontos de Exclamação (Vintage Culture & Future Class Remix)
Pontos de Exclamação - Vintage Culture & Future Class Remix
{"copyright_id":"0x46591c5e4b43a31f7207707f18d85cfe731f4eecb7f70197784923158815e1bf","isrc":"BXHBP1900505","name":"Pontos de Exclamação - Vintage Culture & Future Class Remix","registered_at":"2026-06-01T13:07:04Z","spotify_id":"25usEf5iGk9HL0LM9VTxue","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 0x46591c5e4b43a31f7207707f18d85cfe731f4eecb7f70197784923158815e1bf. 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/25usEf5iGk9HL0LM9VTxue.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/25usEf5iGk9HL0LM9VTxue.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69020c682daaa282f2cf016d8cf0ad3112c51fc69ba76ddfde7f51d2ac8795e. 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/41Rw7ijXSUj2DEtbGOjCjh.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/41Rw7ijXSUj2DEtbGOjCjh.
{"copyright_id":"0x7e48abc4c850d04ceef0d34f1cb0b938c3cb8678aac2cbff95173d165560cbd8","isrc":"BXXIP2100010","name":"Algum Ritmo","registered_at":"2026-06-01T15:13:55Z","spotify_id":"5EVv8M3vhByFLLqT1dkdGd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e48abc4c850d04ceef0d34f1cb0b938c3cb8678aac2cbff95173d165560cbd8. 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/5EVv8M3vhByFLLqT1dkdGd.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/5EVv8M3vhByFLLqT1dkdGd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50dc1f5faef09880d40dac31ed5148adc7f952f0abea78f1c3d217bcda15e3e2. 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/3hCJ7bncN6wjLxWCxhUSkp.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/3hCJ7bncN6wjLxWCxhUSkp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de784c78f77f27012276e66b29a65e0c615c11b3c7e137502eab4864d79d8a0. 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/37RVAKwFtIL2VG9dADRg0W.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/37RVAKwFtIL2VG9dADRg0W.
Ontem Eu Tinha Certeza (Hoje Eu Tenho Mais)
{"copyright_id":"0x21994e515142ac54d59131946c9ec103dcac579f12fee82d3bf2f89d10770edc","isrc":"BXKF42000001","name":"Pontos de Exclamação","registered_at":"2026-06-09T06:48:10Z","spotify_id":"1Ojf76ycx9pJXXs9lCQgxb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21994e515142ac54d59131946c9ec103dcac579f12fee82d3bf2f89d10770edc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Ojf76ycx9pJXXs9lCQgxb.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/1Ojf76ycx9pJXXs9lCQgxb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5728757042f189b3561c468beef983750c8c719e70f9b06063f4ed2b2322fd6f. 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/2oMlMXJUUKtLrsw6jCVyHG.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/2oMlMXJUUKtLrsw6jCVyHG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843316da04795cc088ad4612cd45f25df5ddd25c0d681c974b0069cffed308db. 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/3AOng0rvV1vckylJsfOXc5.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/3AOng0rvV1vckylJsfOXc5.
{"copyright_id":"0x21994e515142ac54d59131946c9ec103dcac579f12fee82d3bf2f89d10770edc","isrc":"BXKF42000001","name":"Pontos de Exclamação","registered_at":"2026-06-09T06:48:10Z","spotify_id":"5bljVffbTFSIMszYQRWBpW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21994e515142ac54d59131946c9ec103dcac579f12fee82d3bf2f89d10770edc. 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/5bljVffbTFSIMszYQRWBpW.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/5bljVffbTFSIMszYQRWBpW.
Pontos de Exclamação (Vintage Culture & Future Class Remix) - Extended
{"copyright_id":"0x718b07c8fcf6fe7f04f3fadd9affd73a62ac09c7e3ed46fa84714cf976ad15b9","isrc":"BXHBP1900506","name":"Pontos de Exclamação (Vintage Culture & Future Class Remix) - Extended","registered_at":"2026-06-09T15:51:49Z","spotify_id":"2V1CQQtaJoYtanIQ9BBivF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718b07c8fcf6fe7f04f3fadd9affd73a62ac09c7e3ed46fa84714cf976ad15b9. 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/2V1CQQtaJoYtanIQ9BBivF.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/2V1CQQtaJoYtanIQ9BBivF.
{"copyright_id":"0x46591c5e4b43a31f7207707f18d85cfe731f4eecb7f70197784923158815e1bf","isrc":"BXHBP1900505","name":"Pontos de Exclamação - Vintage Culture & Future Class Remix","registered_at":"2026-06-01T13:07:04Z","spotify_id":"2SUbexm5oQeuNvEwygv0b1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46591c5e4b43a31f7207707f18d85cfe731f4eecb7f70197784923158815e1bf. 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/2SUbexm5oQeuNvEwygv0b1.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/2SUbexm5oQeuNvEwygv0b1.
{"copyright_id":"0x46591c5e4b43a31f7207707f18d85cfe731f4eecb7f70197784923158815e1bf","isrc":"BXHBP1900505","name":"Pontos de Exclamação - Vintage Culture & Future Class Remix","registered_at":"2026-06-01T13:07:04Z","spotify_id":"7bNDxwo8ZjEdcH23wHCJGx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46591c5e4b43a31f7207707f18d85cfe731f4eecb7f70197784923158815e1bf. 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/7bNDxwo8ZjEdcH23wHCJGx.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/7bNDxwo8ZjEdcH23wHCJGx.
{"copyright_id":"0x46591c5e4b43a31f7207707f18d85cfe731f4eecb7f70197784923158815e1bf","isrc":"BXHBP1900505","name":"Pontos de Exclamação - Vintage Culture & Future Class Remix","registered_at":"2026-06-01T13:07:04Z","spotify_id":"6xI9fwBuu5i2WN2LDLd07k","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46591c5e4b43a31f7207707f18d85cfe731f4eecb7f70197784923158815e1bf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6xI9fwBuu5i2WN2LDLd07k.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/6xI9fwBuu5i2WN2LDLd07k.
{"copyright_id":"0x718b07c8fcf6fe7f04f3fadd9affd73a62ac09c7e3ed46fa84714cf976ad15b9","isrc":"BXHBP1900506","name":"Pontos de Exclamação (Vintage Culture & Future Class Remix) - Extended","registered_at":"2026-06-09T15:51:49Z","spotify_id":"6ZI6JyF59px176ngMx7USV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718b07c8fcf6fe7f04f3fadd9affd73a62ac09c7e3ed46fa84714cf976ad15b9. 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/6ZI6JyF59px176ngMx7USV.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/6ZI6JyF59px176ngMx7USV.