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 0xfbbb8addd79ae532b4328c60288c137f1fad8cc1b83650f36602319508a5bd4b. 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/abe8dafb-541d-4d0b-898c-cda0aafadf3d.json and https://artists.proofprofile.net/proofs/artist/abe8dafb-541d-4d0b-898c-cda0aafadf3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x0c601ef10ebb9f0b2a419458f6b5e529b956e32fbafa6f3c86b613ba87aea14a","isrc":"BCZ582500226","name":"BERIMBAU DOS DEUSES","registered_at":"2026-06-10T00:50:28Z","spotify_id":"0nijJEcv8Ms5upkmeSXoik","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 0x0c601ef10ebb9f0b2a419458f6b5e529b956e32fbafa6f3c86b613ba87aea14a. 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/0nijJEcv8Ms5upkmeSXoik.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/0nijJEcv8Ms5upkmeSXoik.
Segura e Não Solta - Novinha Fica de 4 - Eletro Funk
{"copyright_id":"0xe83ff887b80d34272d397ac66803703b8fc3703e2a036f328bcf83f92948e4aa","isrc":"BCLWS2501025","name":"Rhythm Of Possession","registered_at":"2026-06-28T06:13:11Z","spotify_id":"2HpizsRmqmEFIeWTHKewNl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83ff887b80d34272d397ac66803703b8fc3703e2a036f328bcf83f92948e4aa. 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/2HpizsRmqmEFIeWTHKewNl.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/2HpizsRmqmEFIeWTHKewNl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8689d8246c5214072ebc9e717a1d96d26c13f72472b919462a67c86a3b8e9655. 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/4hyoirxNq6zJiPWa1zDkab.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/4hyoirxNq6zJiPWa1zDkab.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c7e73b1fe48dd572a61dd8fb0aacd9620e4e792f598a6f51454330a6b72903. 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/2zoBSNq7TRuPqf9jfamw1X.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/2zoBSNq7TRuPqf9jfamw1X.
{"copyright_id":"0xa0078c62ce5a1e327287e41cdf3757a103b5ab877ea7473127ea7402ff894a9c","isrc":"QZMZ92595164","name":"A Onda Agora É Pock Pock Parooo","registered_at":"2026-06-07T11:33:03Z","spotify_id":"7LAdIjIswmcRhcQD7fBrqP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0078c62ce5a1e327287e41cdf3757a103b5ab877ea7473127ea7402ff894a9c. 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/7LAdIjIswmcRhcQD7fBrqP.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/7LAdIjIswmcRhcQD7fBrqP.
Não Olha Pra Minha Cara Não (Slowed + Reverb)
Não Olha Pra Minha Cara Não - Slowed + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb27a9e479ddbfcc830e125387880d60a11ad679c33504af8bce09c0def76e5. 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/387WDqgIZdmpDn0t2tB1f6.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/387WDqgIZdmpDn0t2tB1f6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef08d42c3505668861e64b9a9f222f65b44cd34a5248f5775cd93dd9fec17ce. 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/30096a5EMOSaF9c2aSa4TH.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/30096a5EMOSaF9c2aSa4TH.
{"copyright_id":"0xaad46b503ed5094cfc5cf4fe6e1873ee80d253d3d21704ab8bc8c429bfc402b2","isrc":"CA5KR2351690","name":"Taka Taka","registered_at":"2026-06-08T14:11:17Z","spotify_id":"2KemuSGCpUHBljXavmA0FS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad46b503ed5094cfc5cf4fe6e1873ee80d253d3d21704ab8bc8c429bfc402b2. 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/2KemuSGCpUHBljXavmA0FS.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/2KemuSGCpUHBljXavmA0FS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53d8f51796b24c25d56990699b6d83379f897de6fee6037811b75fe5025bace. 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/2m4mtA87Dw0QpElxm8EQGs.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/2m4mtA87Dw0QpElxm8EQGs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7863a66b3721ea05309638a20c900a51936b348e84a9d800baabab5fe59a225c. 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/6FJRHZpa9NjZaJrrCfGkvT.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/6FJRHZpa9NjZaJrrCfGkvT.