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 0x7c98f1208567994534939e346c7175f10875fd039997e96c54bca401fff9307b. 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/32d5fd8f-b73b-4d36-b408-ef8842a64a11.json and https://artists.proofprofile.net/proofs/artist/32d5fd8f-b73b-4d36-b408-ef8842a64a11.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 0x50bfbb5d78c89edbfb2bbf520ef2828c893f7f4b394512954b39367bde59f33d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:33:56Z), 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/ITB881802118.
Weslley & Ygor - Os Feras Das Vaquejadas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a2767db9363a6e324f54babfd2603572194a1dbcb83f814140877e12a60928. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/ITB881700486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501e71123d14c8d15d01a89a36f93d86dd531fe83286dd64eaf0227b2b3e3d81. 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/ITB881700417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8599e06e04a4038f26f3b63aa6a47907d8d3998394faa5228adff7f1e991a0b2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITB881700452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef2546c3305b5fd75ca54a85c5d709af8341a2969a27ec7de5f0218130b5c89. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/ITB881700466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c66e1ebed7af62dc78e2e4ad24336967f0636eb3c8c8db61b8084a1f480263. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:51:37Z), 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/ITB881700601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd19e65af03523ca2d18bd2473c8d5244c0c91538c4e166d063514ca4dd452a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITB881800974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10034a9931a42c8c5045c89d9067d105854a95da6f6544c53beed9cbe3fb382a. 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/ITB881800977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb4c005f6a1dff3d360994a68ee20bf1770c178ae29112cf677375d893c7402. 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/ITB881801429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4447468650cd5bba27b925f25e5a4c698d64814d16afb83fbffebba9ed6eca. 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/ITB881801952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10ac6c95233871475d24a2791e068269d246c92d9dab31f78d27b1d62ea823c. 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/ITB881801953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18953710e5f6e29ac69f3265bd85bb65d1780b45ff8dd3cbe116c2140395cf16. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITB881801954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d627f70cb198731892c6d02736bb8221c18eade18fcc162625666e66eded3b. 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/ITB881801956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51722f9a9233604ed831d3dd38491ee93af853c6b51986f34f9b2dbb8c62849d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITB881801958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71644715c62b4abcb6d29bdb62b533d0230d87cfc3bebacabfae4f45dcc991a. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:39:42Z), 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/ITB881802099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb722b545eb7f02fe1f897ce49aa9b245a7e2506321a3fed975fffb143d54b3ca. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ITB881802101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b8484cc7ddb1972aae7d382ba54538fe1814737bca0602679987d5da851b41. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/ITB881802102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8769e9aced19e11e9c69abaa563d345ed5405c70c903910a9f0cf69470c14b98. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ITB881900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f16af2ec5eba91cb294af215c9a77797cd7af4dea92bd7b360b79502802149. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:45:56Z), 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/ITB881900110.