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 0xc468b01f92c486a32202e435878205c4458029127e039b436e24cadd1b303599. 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/851c900b-e47e-482a-a574-128f4f05c2aa.json and https://artists.proofprofile.net/proofs/artist/851c900b-e47e-482a-a574-128f4f05c2aa.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 0x53e46f911862e1bc18141def396164e19d38a5ff845203c7e2d2d8571d1e8b5a. 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/4lvX3Bk1BNm9ZgfaUC71Vk.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/4lvX3Bk1BNm9ZgfaUC71Vk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2c2777b684ff0192e8493e86ad6027c1e735b4e3f37d101f8508de78b8a9e9. 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/3imUTMISbkNH55h8KWFQus.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/3imUTMISbkNH55h8KWFQus.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5d6b21515b03a2210c175ea5cd8f25a20db318c285550dcc883e9874f17d10. 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/5Y3kW2IsNKMdqgGwZo0uMT.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/5Y3kW2IsNKMdqgGwZo0uMT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013e75eaf68c1a0e9ff94d9a3c6ea02c2988fb6c16155638bfeb73a122a01cf8. 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/3VPJWO3aSQxAoouSUXq1aD.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/3VPJWO3aSQxAoouSUXq1aD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91535568fa9d9b74456532284ab54696f3d3e0c2792475c7cb7de19345b405f. 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/1BSp7V0I9hHaWOF2SU5G9V.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/1BSp7V0I9hHaWOF2SU5G9V.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ced1a0b0564591e00906c605951431f7251740dc381ad3b3d00b779dcda6ce. 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/3n1Gzoz6fxX4TrWdy3QkOe.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/3n1Gzoz6fxX4TrWdy3QkOe.
{"copyright_id":"0x9f62e774ef22a715a04137a02fefb5ea5174150efe26e0bf0b1c9d96bbe9aa58","isrc":"QZWDD2488709","name":"Plug do Stuani","registered_at":"2026-06-05T16:51:36Z","spotify_id":"684cPUkwwrm2w1BHRUS8jK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f62e774ef22a715a04137a02fefb5ea5174150efe26e0bf0b1c9d96bbe9aa58. 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/684cPUkwwrm2w1BHRUS8jK.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/684cPUkwwrm2w1BHRUS8jK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6beb6da89263d5b4d518835822622cb924f73c9302060d47e27457ccb0874fa7. 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/4Ioj7yHEfwsyH2DxHyf9m6.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/4Ioj7yHEfwsyH2DxHyf9m6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607e7e805ae984e3491d2a9f9a23e2f2224e1387981b01e342803001e0cf4de9. 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/2AD4cYI4U9kILfoxnRMT0a.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/2AD4cYI4U9kILfoxnRMT0a.
{"copyright_id":"0x87a9b0eb9b6d11039342455c0fd86ac012aeedae27dbb747a4429f3b8cf30028","isrc":"QZWDD2489928","name":"Próximo Passo","registered_at":"2026-06-04T15:17:27Z","spotify_id":"58r4xh2mRnLOGpCd8SJFvO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a9b0eb9b6d11039342455c0fd86ac012aeedae27dbb747a4429f3b8cf30028. 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/58r4xh2mRnLOGpCd8SJFvO.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/58r4xh2mRnLOGpCd8SJFvO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83fd70e442dfe379fb8532703a0e3935352e7abbabc2a5392ca3393831cde92. 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/0i6gPQcHSl1nwjBtFOXDQW.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/0i6gPQcHSl1nwjBtFOXDQW.
{"copyright_id":"0x677add1c6dec26f2b9ea59992a2902ec0f0a284dd5cf454d94e8a14b9a4ea8f5","isrc":"QZWDD2488768","name":"Lil Baby Freestyle","registered_at":"2026-06-05T07:21:11Z","spotify_id":"7wrb9qeJuQAhNYphhgAo7w","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677add1c6dec26f2b9ea59992a2902ec0f0a284dd5cf454d94e8a14b9a4ea8f5. 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/7wrb9qeJuQAhNYphhgAo7w.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/7wrb9qeJuQAhNYphhgAo7w.
{"copyright_id":"0xb363ecd3f12bbc38e515de89305ff6a15adad3e86b955e25ea688a1a3600b933","isrc":"QZWDD2488782","name":"Plug do Stuani Remix","registered_at":"2026-06-04T16:09:59Z","spotify_id":"3ayNe6hw8Ycg9VH2qaIXcE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb363ecd3f12bbc38e515de89305ff6a15adad3e86b955e25ea688a1a3600b933. 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/3ayNe6hw8Ycg9VH2qaIXcE.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/3ayNe6hw8Ycg9VH2qaIXcE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73852f4a72ab66e31fecbea4e58072b39c01ade314c5138f257c5f9c63dd1c07. 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/7jzwGCjF2mjymehkkk4QbX.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/7jzwGCjF2mjymehkkk4QbX.
{"copyright_id":"0x5ca20359c53489ba254fb9e521244a6e54b61df5c742802f1bfcbd64dae25387","isrc":"BRUM72301354","name":"7 NOVINHA PRA 2 MLK - BONUS TRACK","registered_at":"2026-06-04T06:47:01Z","spotify_id":"53d5THIukxStMHSJrGOOvu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca20359c53489ba254fb9e521244a6e54b61df5c742802f1bfcbd64dae25387. 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/53d5THIukxStMHSJrGOOvu.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/53d5THIukxStMHSJrGOOvu.
{"copyright_id":"0x677add1c6dec26f2b9ea59992a2902ec0f0a284dd5cf454d94e8a14b9a4ea8f5","isrc":"QZWDD2488768","name":"Lil Baby Freestyle","registered_at":"2026-06-05T07:21:11Z","spotify_id":"1J65CTuIak3pGHA6mnx2GS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677add1c6dec26f2b9ea59992a2902ec0f0a284dd5cf454d94e8a14b9a4ea8f5. 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/1J65CTuIak3pGHA6mnx2GS.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/1J65CTuIak3pGHA6mnx2GS.
{"copyright_id":"0x5ca20359c53489ba254fb9e521244a6e54b61df5c742802f1bfcbd64dae25387","isrc":"BRUM72301354","name":"7 NOVINHA PRA 2 MLK - Bonus Track","registered_at":"2026-06-04T06:47:01Z","spotify_id":"3pzU2VYir6Sem1IqZgDjyn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca20359c53489ba254fb9e521244a6e54b61df5c742802f1bfcbd64dae25387. 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/3pzU2VYir6Sem1IqZgDjyn.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/3pzU2VYir6Sem1IqZgDjyn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e46f911862e1bc18141def396164e19d38a5ff845203c7e2d2d8571d1e8b5a. 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/0yjmIdxEM2dYSJEGt5GOyR.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/0yjmIdxEM2dYSJEGt5GOyR.
{"copyright_id":"0x87a9b0eb9b6d11039342455c0fd86ac012aeedae27dbb747a4429f3b8cf30028","isrc":"QZWDD2489928","name":"Próximo Passo","registered_at":"2026-06-04T15:17:27Z","spotify_id":"211A1qh7yZFEwRusPiBWtb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a9b0eb9b6d11039342455c0fd86ac012aeedae27dbb747a4429f3b8cf30028. 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/211A1qh7yZFEwRusPiBWtb.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/211A1qh7yZFEwRusPiBWtb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5d6b21515b03a2210c175ea5cd8f25a20db318c285550dcc883e9874f17d10. 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/0oQlZ808JQI3FYhDz24Pr8.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/0oQlZ808JQI3FYhDz24Pr8.