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 0x4640ff4aa9b07c31e12ccb5ba1bba71709a0c7b00cb4f506981484ae91a130dd. 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/8d4a37d1-b0d7-4913-b929-772e09aabd93.json and https://artists.proofprofile.net/proofs/artist/8d4a37d1-b0d7-4913-b929-772e09aabd93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x62fd6a62629a882c8c4b997963a8e776bf6df08cec4419a08c131af45df6fe57","isrc":"BRKCN1300006","name":"Tudo Está Parado","registered_at":"2026-06-05T17:26:35Z","spotify_id":"2wE37QPDOZ0Jh0IvBXgBcA","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 0x62fd6a62629a882c8c4b997963a8e776bf6df08cec4419a08c131af45df6fe57. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2wE37QPDOZ0Jh0IvBXgBcA.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/2wE37QPDOZ0Jh0IvBXgBcA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d05abf40ac917d5639b89601f8ff8ed7e7b443139acc67600daa2955c9bf431. 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/2a4YKuDKggom193tPqgupn.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/2a4YKuDKggom193tPqgupn.
{"copyright_id":"0x899858f8e37b71303453d8400ffe90221bd7fadca91aa3dcfa3b789da21cd26e","isrc":"BRKCN1300002","name":"Sua Graça","registered_at":"2026-06-09T18:15:24Z","spotify_id":"58qhp4H3BhmElrEWZOVUBK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899858f8e37b71303453d8400ffe90221bd7fadca91aa3dcfa3b789da21cd26e. 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/58qhp4H3BhmElrEWZOVUBK.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/58qhp4H3BhmElrEWZOVUBK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4028333ff0fe3ee765c438e2b2a580cbf7c0f0f534cd6b7649586e0cebc8abc4. 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/2a2DNUfRH9pa50PEgWOEuc.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/2a2DNUfRH9pa50PEgWOEuc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc7de6f2a039f1d847970d07b2971d574eb18a0d75b530a9e68a447729e487d. 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/4AusSMa2o4DrbD2FwDSgMq.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/4AusSMa2o4DrbD2FwDSgMq.
{"copyright_id":"0xc662a97f21ecdf7e1a45eb55316b8993bbd9e0d569fb6ae8f4619a20088b5d65","isrc":"BRKCN1300005","name":"Tchau Radar, a Canção","registered_at":"2026-06-18T03:10:15Z","spotify_id":"3cuSbjLTrSpGDzZXFTUq9X","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc662a97f21ecdf7e1a45eb55316b8993bbd9e0d569fb6ae8f4619a20088b5d65. 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/3cuSbjLTrSpGDzZXFTUq9X.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/3cuSbjLTrSpGDzZXFTUq9X.
{"copyright_id":"0x62fd6a62629a882c8c4b997963a8e776bf6df08cec4419a08c131af45df6fe57","isrc":"BRKCN1300006","name":"Tudo Está Parado","registered_at":"2026-06-05T17:26:35Z","spotify_id":"6fSN7nrnPiZTONa1N9CTw1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fd6a62629a882c8c4b997963a8e776bf6df08cec4419a08c131af45df6fe57. 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/6fSN7nrnPiZTONa1N9CTw1.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/6fSN7nrnPiZTONa1N9CTw1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3973069db3a06cf7ba64f6c6ce3b936f52b2e19798be2c89a488146574b3020f. 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/3ZtKIfhkaSAP4DOdmMXwgl.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/3ZtKIfhkaSAP4DOdmMXwgl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f78681ab5f62b46213327049f9a25de4e64be9ce9ec3fb5f397f2f959935cf3. 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/26GpZnt02b80AARo1WVqYy.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/26GpZnt02b80AARo1WVqYy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b47580df6a061047a8d42eeb0588f059ff03d9f8e67242520b1b6b8c1e48f7. 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/7KLE8VMsldaUvOjFGKuJNR.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/7KLE8VMsldaUvOjFGKuJNR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecd38828384723909e4709e6084a0956e672c6fa6f9b12391379dea9c600f06. 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/3zo1uNCKi0eB9ZnTVdcXU7.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/3zo1uNCKi0eB9ZnTVdcXU7.
{"copyright_id":"0xee64cddded412b256a8b37ebacfb6586ec36b3070b71c90fc479f63f2a057ad8","isrc":"BRKCN1300011","name":"Segura a Onda, DG","registered_at":"2026-06-10T05:19:36Z","spotify_id":"5pz3Vl2BjE99gLpSU9d0tX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee64cddded412b256a8b37ebacfb6586ec36b3070b71c90fc479f63f2a057ad8. 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/5pz3Vl2BjE99gLpSU9d0tX.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/5pz3Vl2BjE99gLpSU9d0tX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0967317290cea29dce037f268130a066113d080ad5c7a4ac96d3d5468849d6. 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/2NzD6Ku2AhtQR9hDSUfg4k.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/2NzD6Ku2AhtQR9hDSUfg4k.
Ao Vivo Pra Caramba - A Revolta Dos Dândis 30 Anos
Quem Tem Pressa Não Se Interessa - Ao Vivo
Filmes de Guerra, Canções de Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9948f739c8bf821e3eb6e147a40b2010847ef7a6f9bf03bd57c72383a2321bae. 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/3z5l974e1CSjN9R35x11mn.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/3z5l974e1CSjN9R35x11mn.
Estranho Fetiche / Fetiche Estranho (Carlos Trilha Remix)
Estranho Fetiche / Fetiche Estranho - Carlos Trilha Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2296574db3bc07b059bfc52647926830d3a8b6b08ad628f2f50dccd38e140a. 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/192sQ1pPvz8nwA5YWp8o8o.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/192sQ1pPvz8nwA5YWp8o8o.
{"copyright_id":"0x4b9ff1c7a0e2ddd202b3deba7c24f643dc98a5b12d16044b1f1032f3ec681992","isrc":"BRDEP2300371","name":"Vaga Semelhança","registered_at":"2026-06-29T08:15:04Z","spotify_id":"4UDDavtVwLgEYoyqAizUcf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9ff1c7a0e2ddd202b3deba7c24f643dc98a5b12d16044b1f1032f3ec681992. 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/4UDDavtVwLgEYoyqAizUcf.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/4UDDavtVwLgEYoyqAizUcf.
Era Um Garoto Que Como Eu Amava Os Beatles E Os Rolling Stones - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdfce35219d4b3aa362ad04791a509f105b826802f9fb978c3fb23c0d55b89d. 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/7pQ8VpNTjAf6Os5J5iscRh.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/7pQ8VpNTjAf6Os5J5iscRh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73cbcac9d39ac6491ba5762dbdb97446ea1561938c19812d2846c89acfe7b57. 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/5Igy505X6PUmXBt6nXP36S.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/5Igy505X6PUmXBt6nXP36S.
{"copyright_id":"0x8bcaaf027592c90922aa44b9dcd1b5ae815000125469a2761b0646fcf4ca0bd4","isrc":"BR2KH1300038","name":"¡Tchau Radar!","registered_at":"2026-06-10T19:21:48Z","spotify_id":"4ScYITrZShAoohrDHjDmcf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcaaf027592c90922aa44b9dcd1b5ae815000125469a2761b0646fcf4ca0bd4. 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/4ScYITrZShAoohrDHjDmcf.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/4ScYITrZShAoohrDHjDmcf.
{"copyright_id":"0xa6a5e844be24c469313596f3b309e71c10fe3932f07eee96e1cc694c2ea4fd31","isrc":"BRDEP2100011","name":"Começa Tudo Outra Vez","registered_at":"2026-06-05T16:25:34Z","spotify_id":"6fX0CLC0UcITuLpi2kl8T5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a5e844be24c469313596f3b309e71c10fe3932f07eee96e1cc694c2ea4fd31. 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/6fX0CLC0UcITuLpi2kl8T5.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/6fX0CLC0UcITuLpi2kl8T5.
{"copyright_id":"0xa6a5e844be24c469313596f3b309e71c10fe3932f07eee96e1cc694c2ea4fd31","isrc":"BRDEP2100011","name":"Começa Tudo Outra Vez","registered_at":"2026-06-05T16:25:34Z","spotify_id":"5MsC8UmSVSZiwjwndj3APV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a5e844be24c469313596f3b309e71c10fe3932f07eee96e1cc694c2ea4fd31. 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/5MsC8UmSVSZiwjwndj3APV.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/5MsC8UmSVSZiwjwndj3APV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ef2562941c9721eeb5742805f5ec5a480cd39ecf1468f98a117d4b4fd7d384. 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/5CIRqv7vIV06B7IqIcSkWf.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/5CIRqv7vIV06B7IqIcSkWf.
{"copyright_id":"0x0337e70e35a123ceb0242fdd82f82681ae77e0175a2d2ca59059d01013ecf27d","isrc":"BRUBV1300006","name":"Milonga Orientao","registered_at":"2026-06-24T19:19:36Z","spotify_id":"1iilbPrVjVmwrSnj865cKq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0337e70e35a123ceb0242fdd82f82681ae77e0175a2d2ca59059d01013ecf27d. 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/1iilbPrVjVmwrSnj865cKq.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/1iilbPrVjVmwrSnj865cKq.