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 0x161927a2fdf8475a43ddc7595724afa2556aeff1cb35642a31fbebd1e836c124. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e03ec7de-de39-442a-916e-b2b34fa03306.json and https://artists.proofprofile.net/proofs/artist/e03ec7de-de39-442a-916e-b2b34fa03306.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 0xe3daa4f3b2cf68200c2a779745389a60e591bec71ce92bd1470b016b8911a40c. 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/BK4DA2429186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ef5b06f6f38aef985ce97549ccec3746b58f441b6bd4b92b21d6d90ee2ea52. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BK4DA2433763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07418ab7fe65f97ce989473cc6c56f7820592784af6f52fa769981bbde9f1f1a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BK4DA2433764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b13f5ba7658b5085715a9c555ac7f473defbf2bfa855c770c57f563ec9cd16. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BK4DA2433765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b4e02fa2b95f615ba1ce0f320fd1477f18c6e18fff7ad810f6e0c53af031cb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BK4DA2433766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ef5b06f6f38aef985ce97549ccec3746b58f441b6bd4b92b21d6d90ee2ea52. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BK4DA2433763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a337de0d4c247895f0da08db1fc38f2e5d334f00b9ed254329500ebc079e40. 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/BK4DA2438328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610692886da3ac52e5624cd1eaaf4ceb86f88f1c0c02208bb88e65506e53d255. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BK4DA2429183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b78a6f6d8a50d209e714d4ffb8c719f05f22fb5784651cd1167af2f53a4be3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BK4DA2429184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07418ab7fe65f97ce989473cc6c56f7820592784af6f52fa769981bbde9f1f1a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BK4DA2433764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a337de0d4c247895f0da08db1fc38f2e5d334f00b9ed254329500ebc079e40. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BK4DA2438328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7616b2d1970ed1596b823e341d7765f2b1a8bf9cfe6dd0bd23d04985258996f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BK4DA2429185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b13f5ba7658b5085715a9c555ac7f473defbf2bfa855c770c57f563ec9cd16. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BK4DA2433765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9103a130d181c4576d6e8780a2d881def0052a05051b842164fffbaf0f323b2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BK4DA2438329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3daa4f3b2cf68200c2a779745389a60e591bec71ce92bd1470b016b8911a40c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BK4DA2429186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b4e02fa2b95f615ba1ce0f320fd1477f18c6e18fff7ad810f6e0c53af031cb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BK4DA2433766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89e75a02ccbb736b02fbe41af4dd322b4e280747c98c58a16c9d5716a983d89. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BKAKS2400034.
Por Quê - Eis o Meu Coração - Tô Sozinho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d8215360b9d66beeb0be98c64c4cd121265f71f137084260004579603adde0. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/BKAKS2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853967a3e2f8faeee91069dfa92a890c6060ee514968394c1e9a4f04ba782161. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:47:09Z), 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/BKAKS2400036.
Me Mande Embora - Bolão de 60 - Nossa História
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbf58d7339876825387a386db17707ebf194c93b877203b87bb1cf6fbd3c2ee. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:01:08Z), 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/BKAKS2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e191136061e0e0e60da5f0dadeeddfea8dea8c7580f1f71f064c9c65c55054. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BKAKS2400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e191136061e0e0e60da5f0dadeeddfea8dea8c7580f1f71f064c9c65c55054. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BKAKS2400038.
Pra Recomeçar / Filho Sem Sorte / Sou Vaqueiro Nordestino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797daeaa4d9f0f3d291645b30cdf23873e723b7c67c026b76d68e25c870c1421. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/BK4DA2533918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a20d05e1adf4e1de78d9b29205e9b3a0942e3e14177c31a252afccce141d212. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BK4DA2534199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2d58c4fb7e95b67ab25b36886e69b85c3337fb1a9d3452f8454deeb456877a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BK4DA2534201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00fd7e70d5afc43199fcd1097e5ffadde4010afe0eee0a3117cdc4701dde786. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/BK4DA2534202.
Amar Seus Defeitos / Ô Mulher Ruim / Mulher Ingrata e Fingida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a36148251c566b0e1df7eadcc715b56ad9169fd564242826dd26f1c0109cb9. 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/BK4DA2534203.