1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x876b91041631d7f69de44547a29ae6f6a5d6ffe24aa5126b05431a5a1c0dc1b2. 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/d7b06042-c37b-45e6-a983-74610c160ee7.json and https://artists.proofprofile.net/proofs/artist/d7b06042-c37b-45e6-a983-74610c160ee7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ab2f9374a8f5f27df40a651662eb8b912e6654d7e799069bab45dd4b671cc9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb295df7e8c680e15fb7acc7fd080f2273c44e4dd6a6e540cda815596559a1dc4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257587.
Amar só faz sofrer - FORRÓ QUE SE GARANTE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03437521996ab980b8a46defecaec90d036b4e90ff96a200e2b3d11910e681c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c36c59849562d4f6825cfcc2441edd36f645e996897f06b9970bffb0a7e55f. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257591.
AO VIVO NA UNIÃO DOS MORADORES DO CONJUNTO TIMBÓ - MARACANAÚ - CE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854f351876fa8f831ca9fd97c8b805a2bac24435aae992bb7f2870fa5f87443c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621e64a1366281e8b651450fc319df184ed0091a9157d466833005acc130df54. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c645a923c2ac4622c388eb4c5f20d01325aea67593129f399c9cecccd195f6. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a41e064f5a430d582eba7079f415f4128e07c8bd34eb4e7863474aa8113c62. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf58344fe974162ecd86cba643fef21b6377dd14f5942d21f6acf8ba9f3e6d9b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257549.
O povo gosta é do piseiro - FORRÓ QUE SE GARANTE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c63993b7362450ab9f8bfb364d9b3f23df9cc25297b20078e8566536cf03fbc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe489164be5b9721ce7fa01973d526f869b1b4b9f2337a0982e4bd9d8f4602a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ac92a0ffa9511e06626b2ef71abf706aa7b29662131be53d1b5071ef4382cc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257557.
Vou dormir na rua - FORRÓ QUE SE GARANTE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b33fef34c4588d1dedca9867ef4e20f72eb44df823ca5287e4c118a0348fb4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:53:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36c8a3af482bdb703cd58938db2257f849a0fad946e1d5ed71b7588a51703be. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf766f88829de988c80ddabd8e86e5cfd31f555d8b13f3d3056229cf49a0bc0b2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257560.
Se você ama perdoa - FORRÓ QUE SE GARANTE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea77b18babb41bc0b90add15bd713f5fbec0023149b5fbf3a3469c5b3fd63084. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257561.
Não posso dizer adeus - FORRÓ QUE SE GARANTE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ffcc4a27620ff94fe5e0a8af2e3e8895efce2fd4985cb8cd8c1873fb77d3b9. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257563.
Pegada forrozeira - FORRÓ QUE SE GARANTE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4a508d0c7db5d6c5b1f069d392ca453ab6c9d70b79137a408b04654bcd77bd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257722.
Oh forrozeiro medoin - FORRÓ QUE SE GARANTE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8257a39cbdcb589406cb830be446634ea0d3d3b5caf6ec7daefc2abd10ebda6. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:24:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a5face313a46b552efa21a46a43a6986f3a8a60ca0180c67016378f4314139. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb092f6569139db4f375fc763b82bd95e354ed4b935295ad24c2e9531a16a60. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4E52257685.