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 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 0x5802ee76f9fd03e0a8d9cdf94fc6837ec88aafb8f0bbde08059afd230dd115be. 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/695e5db4-a483-465f-ad4e-6d7fa75280c5.json and https://artists.proofprofile.net/proofs/artist/695e5db4-a483-465f-ad4e-6d7fa75280c5.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 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 0xed12225eebf33189a6bfcdf12e7e7673c504b9c164f6174afa17d10c600d8243. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BRRGE9100625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445008f2a67103f08ec044ff3cecc932e99d399db7ae5327545e4486c5c6a553. 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/BRMAX1400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c3a385756155da04426505d01b64cc2866dadb568c303d3a50327f1d448119. 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/BRMAX1400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57119e525c51c2736dd3523c5dafde5c38942b48a7eb48f23bb52c6e4c4cbdb. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/BRMAX1400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff411db2ad5752047fad4e726d704e2c5fb72abec3e824c098be751b0066a49. 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/BRMAX1400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec592d3ed19d6cc1b4d26b27cbfb07ea23cabd15fd443676b0df65c654fba81. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/BRMAX1400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752b709a5e7fc594e2b4a3f903ef08ed5d362d369f2dd1d8e984b411df6f4dc6. 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/BRMAX1400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccaf0ee10ae6f03b52ba75d102b8a452927ef2bacf937eee70f83a20573063d. 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/BRMAX1400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401a2f886f3a1ee9c2510eb2de02fa79d5fe73cd20bc3d75fc653e3be1859c08. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRMAX1400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7c9b6712f90960330901cd5cefccdfa875cd3db8cee4dea4db14ea342c19e9. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/BRMAX1400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbbc29e75dfe7fb46f8ba550e7a6e0a8e8e39e2de8ad19254c97594df0f766c. 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/BRMAX1400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8377de26f3e1d3e7fc1e6ed3826cdbc89a7b4e53276788da4516fe62ec907935. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BR03D2101421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1296d73dab9bc12d2adcaf62d29eb0198152ea72ee9f00fc5449f8194b4acaf8. 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/BR03D2101422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c82d0bb2a00d347169288c09e23caf8d25cb931d689fa9cf6f385ad8c81d2ba. 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/BRBMG8400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab305dd6e8acf9da181f35793e1efbeb692fe1016f624486dfe5b2869d787b3b. 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/BRBMG8700183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1345f3c2d3209940bc66a6e744dd6cfc3434d81560918b1c75ecb4eedeeaa628. 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/BRBMG8800178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92e66ee27c3e91f1a910aef38acface5bfb9a644b112f5196b682f9a1f6511d. 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/BRBMG8700216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6c84d56f0e6e65f4a21eb76bc3e6309e481ece28e93bc8afc33abf54f30189. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/BRBMG8800180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6906fd5628dd825c87225625258f84a750f86d5e6a3f340d665f0a771ec0c5. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/BRBMG8900648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3d33f6e3d18f5d030c717686d5beeda515029c6e92317260e5b77d515318ce. 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/BRBMG8500162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1345f3c2d3209940bc66a6e744dd6cfc3434d81560918b1c75ecb4eedeeaa628. 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/BRBMG8800178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c935a671d026508aad5e5297e542b87206cb23b9eee1670c6b952bf79b830d9. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/BRBMG8600145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9217f99c68a12726a23f0f48a9cfbc11ce3f56b86d9465da83af6b9b1392ba62. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/BRBMG8700184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66ab2bf258ed820fb1275dab297bbca2f847ce2e9d0cab90e99740a55635673. 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/BRBMG8500287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a6749463a74b4de140a0501436ba0f4740725b457047794af42ac5e24f3948. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/BRBMG9103649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5e1dacdfcb99605266215becbaaec8bc053fa2bb0e3fc26e9a39facae3f204. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/BRBMG8700393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951cc5937f480e5d5147e89fa8752a8a1c0cbc2883c5d7ca20e449f7286f2fc0. 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/BRBMG8300313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84413d03e3936cd32cd4d33b53d848f7af2681374606e8bd64b5e83777997a57. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/BRBMG8700185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46244421baa479bf0008f4a659c6cd02e06760a51985a354de296bbf5b8c111e. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/BXOHR2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91f1890d415b6ca85c0112a6cb76dbbc37e247377e0d29d1eee4304989f83e1. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BXOHR2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90138c75e1ec5ce2bbe34ef4f865c1140fdd6f655066e0605735426b1f72e9be. 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/QZW9L2418795.
No Maior São João do Mundo Com a Metropolitana Fm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4ad975ed3d755280e5e4dc75e1b35b5c03eed4e60a6b894f801e01b8c6ff4b. 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/BC7AY2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2319a94d0438c391a757195a7fb283df0d670f05fee66c6dddbd4f8dc0e252. 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/USHM22434950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be7f11c118541412eb1fd453da1ce51bc3c0e8209b030cbacd39684917a75f1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHZ62147844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee6fc341a264e4f277779edc1c10a992db7e41475d232fc9cd97008fcb20a4d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/BRBMG9101599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96697787e0427dbef893811d1964d5813a88060f5a06d2ed18a2f1f3b9d5464c. 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/BXIBC1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb9942aa09f5d58621b1fee78404a0559d49e43a85304242c3211b86b53c977. 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/BRFT82100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81cd6ffbb4200fc6bf6def9bb84419218ecb664a32ad3c17f22e416cdb6be8b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BRFT82100248.