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 0xd9f2f0e68a4f0614e39038dffd9d01c6cea7be7e98304a7da3fb3b1741193de1. 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/48819312-9589-41cf-bcd3-7a20f7c1ead6.json and https://artists.proofprofile.net/proofs/artist/48819312-9589-41cf-bcd3-7a20f7c1ead6.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 0x5c806ad0c4cc5845264bf6bd8dd377432610502ecf281e0740399822b3d31235. 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/4S0TwYLl8uGgLIdCA5a7T9.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/4S0TwYLl8uGgLIdCA5a7T9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa509c8f5399b38df942df6c6e703d0e267bff409c2ede47df779e17e148a9a14. 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/334H94ldewBLF6MpHABxSV.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/334H94ldewBLF6MpHABxSV.
Trompete de Paredão (feat. Mc Pocahontas & Mc Gw)
{"copyright_id":"0xbf366be4c71edc995b53f5084d5697cfee6fc9dbe5f8b0b5b2b7e6c3a45fbf06","isrc":"QZNJV2419776","name":"Disk Saudade - Remix","registered_at":"2026-06-19T11:27:50Z","spotify_id":"5UvTCdZBExy2bpxApjDIKN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf366be4c71edc995b53f5084d5697cfee6fc9dbe5f8b0b5b2b7e6c3a45fbf06. 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/5UvTCdZBExy2bpxApjDIKN.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/5UvTCdZBExy2bpxApjDIKN.
{"copyright_id":"0xe5e78ab6ef53f24e1f1d95249851bd1761c3ee9660051504fc9c1dca2412fc69","isrc":"QZNJX2447938","name":"Namora um Boiadeiro - Remix","registered_at":"2026-06-18T01:12:29Z","spotify_id":"0zSuWg0ZbYFsPq48TeOgBE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e78ab6ef53f24e1f1d95249851bd1761c3ee9660051504fc9c1dca2412fc69. 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/0zSuWg0ZbYFsPq48TeOgBE.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/0zSuWg0ZbYFsPq48TeOgBE.
Mega MTG do SUL 5.0 (Quarto 12) - Mega Funk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8a185068873441404453f5d41deb06ce7ce7076d3e772d542b2f2518ecaf71. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7GHrwQ3TCWmAzNu0ZBP6hk.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/7GHrwQ3TCWmAzNu0ZBP6hk.
{"copyright_id":"0xeeecd650f27c1889fb9e03b65ad3b4dcaf1732c2aa833770e0e3d423ecd41589","isrc":"QZ5AB2484364","name":"Então Desça (Remix)","registered_at":"2026-06-09T08:33:29Z","spotify_id":"6PhPqqkHZbcJquj6p5eLQ8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeecd650f27c1889fb9e03b65ad3b4dcaf1732c2aa833770e0e3d423ecd41589. 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/6PhPqqkHZbcJquj6p5eLQ8.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/6PhPqqkHZbcJquj6p5eLQ8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e110f82236d63011eea6e8d344f8126f1f3b5035b35b61865633f2a1fca836c. 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/2S3qyxxudy0KdrY82x04Kp.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/2S3qyxxudy0KdrY82x04Kp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa184b4b74fe943f0175125f0c6a16b099389a59ff1c42467b1d44590492c632a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1I1HZHzBSVUBgWk393k5Nb.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/1I1HZHzBSVUBgWk393k5Nb.