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 0x41dcacae88c07a6d7b9d5d31d807dbc566afb4cd28a21cf74ee7e8d2d15785cf. 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/cb4b8f0e-cab7-45e7-b8f6-5e39c8986168.json and https://artists.proofprofile.net/proofs/artist/cb4b8f0e-cab7-45e7-b8f6-5e39c8986168.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 0x2debd04c17055d8835e1efa2f603c5734363e55c6f54354df9a87ef14f38583d. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/BRCMP0600267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76510daec39f1d32c6b3a1ea8865e1a8b706087c80a36b816f41f9dca145ea86. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:45:40Z), 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/BRCMP0600273.
Mantras para uma Espiritualidade de Comunhão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca83e252ff4277700a2135e9f1c2bba6c7e436aa6c02a9d176a33006ed0e09a5. 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/BRCMP0400766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f708a9e34cd1d504fc9e2fa4537b7c1662bb4bb3a5c60aafad79692442d929d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:37:08Z), 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/BRCMP0400767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19dcf1a6944bdce0ed37af034ff4069233e22f85ff8b3f7cb90af7467148ea1a. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/BRCMP0400768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eec70fd3d133d03003a16a429e59e1b112ff1f20ddcf642b18e106fad098976. 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/BRCMP0400769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda278b71c144f0de8557d1d5b90246aa90caa973d837d3a1b10550f28e1ba4a. 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/BRCMP0400770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1299a0735024a634dc57ce7e7caf1be58877fe8b9184db50952b54860f550041. 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/BRCMP0400776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866aef208c2ebb77646b985a40083b47cd43050ea25b22675f1cd310f62fa1c7. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:19:50Z), 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/BRCMP0400777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9896369b5db57e8f251e562c808bd00dcb25c27ad312ce9fa47b5662e0416e6c. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/BRCMP0400778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71bcbb0195346809d95cc53fd681af5cf409b36f3e3d729724418eb5697f200. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:56:34Z), 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/BRCMP0400779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7fd6b483badb391cb02ac7bc7afd2736a028607aac5052d82865fc914797d0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BRCMP1100001.