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 0x74bf6426241dec275feafd5c0ec4306537a35f0be23975b4af21d99d6b4dbe12. 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/499ffa15-58e1-4916-a1f4-3af2233ef1e1.json and https://artists.proofprofile.net/proofs/artist/499ffa15-58e1-4916-a1f4-3af2233ef1e1.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 0xce53af81d5060df2dc730ca9b311c933ead7fae7f360543670e8f3daa6bc563c. 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/BRAPI0201164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a26282845bd9e70128a1698593f9b38d83ae0bfa37a37b27f3d9dd17a7f6f7e. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:24:07Z), 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/BRAPI0201170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97eb8492b79669b599a3595ab67d020095d3eaa38dabe9972ebb6f4807f123d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRAPI0201171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9489282366a5e2a9737ea889f961a64c0a84b6f7945cf41ec88f2fc3fab4d7. 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/BRAPI0201172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fcf5d8633a27f284578a5d59441f1be7f588a0f0e528f5559c96e0d1be2210. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:25:31Z), 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/BRAPI0201173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58bc30d3c3d26b332b9ed1ecb275778882a6bb5e2ba16c7aaaf31f292ed74c3. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/BRAPI0201174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd18e8151e4aa8b01eeed764cdf785410ef3cb1c8a5cbce2c005e35042c129ce. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:35:42Z), 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/BRAPI0201175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016b873c64d145d69ff2411e9ed4a9b2dc8fffb14da114b2dab41404e23ca234. 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/BRAPI0201177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5eda88da5967f4c6fd04870e051938a80fd8f492af7764ff1c1e7f63c5feac. 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/BRAPI0201178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17d906ae11dd632e31c20d1ce5b124d2ca504eccffa828e369e515287ac4a0c. 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/BRAPI0201180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8214f808609eb4204a611623968767ed04769ae30154a566b389186a31cca1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRAPI0201181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc897cf1e46301d7e6011af59256799a69b55162216c26c81ef1057e518f16791. 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/BRMAX1900317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2d00ca75f3fc5d4935b1f4d811bdb1f12d1aac0bafe05a0c3a72446e0820ae. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRMAX1900319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788e2d3e84cca2e7d225a6d27d83d8d08f1582cf1160aad11574f2ab97b0f98b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:51:11Z), 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/BRMAX1600065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4feda471404d59b150c1b3d4730802a7588fcb7a6e5d00571d31c39708aa2b9. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/BRMAX1600066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cfad75381b47a5ffa84bb0d9cfcc7cd64844f22b5cbd25e55fac282d550101. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BRMAX1600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2dcd300bbc9b98f312011fcaa9c64cabad4ad3f2bdd383d7d3b33e13e0b891. 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/BRMAX1600069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c084325a993209e65ec17bd5c58f6b06af308c1253f9313502162ba2d62061b. 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/BRMAX1600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6875c2d7509bce7f8515cf37b82c1618b17017974ea4b0553d07f7ea3dd12057. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRMAX1600071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a96497917735f1105860ea70638af7a1cdb2fd6ed1c847b9aeba17df14744c2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BRMAX1600072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f1cf470ce32b38982c597a1690f6a764506e1504a0effb9149203367fbb16c. 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/BRMAX1600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9aaa6fc71e98de89abcdd41cf56e090a996455b89a963b31ba87e1c42284e9d. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/BRMAX1600077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f713ad284d4b49f9b474c4e2b6069ecca7fbd4a40133b99881c7fe609a59e7c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRMAX1600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d75a4cfb153d5ccd8ace135a1d9d9393e202cc9db06fe5fc401f067a3f21e73. 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/BRMAX1600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5705d0cda0b575c5839a748745779070a4b4e1b0c6dacee29a17b0c4672864f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:35:03Z), 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/BRMAX1600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f5855227c2acf5f0cde9992841cad800eb9d2986305c0d8d4ff15daa97588c. 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/BRMAX1600081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c47ef599e60debba284fbc95fe15ed29267728bcc49f530b760463583d3cc8. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/BRMAX1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3df24d8a3a28dd29938e3a82846b927931e43e97fce788cccb56e3965d2c79c. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:50:26Z), 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/BRMAX1600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb326f52b55cd914464d43ee2846a1f2418e0cf0c1b0c26a64b8d9a5f82326717. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/BRDE71200106.
Santanna "O Cantador" Canta Petrúcio Amorim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12076b5feb0193ad43c5fbadba9dce82e5ea003a5291c9ba33493e3f3700c36. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BCDQH2400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72740330cf47f4beab6f67ea7eee30aac7b1ac1b3ea1accd43ca376273fcb59e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRFT82100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d5c3c4cba762960cf6bd3b0d7cb5f344d9b7b4eb7d914567b615990822d720. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BCLFL2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12076b5feb0193ad43c5fbadba9dce82e5ea003a5291c9ba33493e3f3700c36. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BCDQH2400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd465355b3abd7c835d9d6ee827571231167d9668456140ca5d1f7afb47c9b1f5. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BCDQH2300017.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3074de05b7d7570ca9e568a13fced8a7f57c9a24a759c152884a74d490932f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BRFT82100251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d7902ae28dcede7e0ba7d8243c0b2fb789581f5ac63e9f64343ecda9b7a4a4. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/BCLFL2400005.