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 0xe32e41092412913a5a6dcfad78be3726f2dfad38195fcc83b188596a19649c0b. 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/c9e7f94b-e8af-494a-bfe6-7df07241fcb2.json and https://artists.proofprofile.net/proofs/artist/c9e7f94b-e8af-494a-bfe6-7df07241fcb2.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 0x7ef777a4357a68c05b2644918ccdc2224b24ab02482d8e1c7fdf4999f2a8c8e9. 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/BRBMG6800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fcb729cea7bea288ad7bd605eeeb60149b5f78f43984acf343f2839e32f28c. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/BRBMG6900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f41337014307c7f63828164d52be0004dad852b4b1fd6e113d0ed09430a9e5b. 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/BRBMG6900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abff4597034fd9bed07a82f2260e7f93bbe305020e08d59f6ffce8724402038. 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/BRBMG6900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd19d2e22553d67894567ade45ea4e9f89590ab90e7ccbfdfa273e0b8e20fb54. 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/QM6N21570939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840a6b3c485c2841094925d6305be1ef6926fbf7adedd406bb1f8c7154c7a923. 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/QM4TW1573636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d426dc8fcdddadc5a61de000eb4e6306753d65a0d54d11df699c5502af547f5. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QM4TW1573637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac237f1e8f4cb6fad7d91beeb3b7971d74805d1a4dc61afc2f4856e8868c9ce5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:47:13Z), 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/QM4TW1573639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff7a4040ee0d8e18f29e259845787bc168f03ed4dd3b80a5aee9daf46f6a03c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:33:05Z), 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/QM6N21536481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9f975e6e4a9d37ffcf3eefa5190a2d3ab1a7ecc02842b44539e87ce9e3c54e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/BRBMG1800437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbb98418e0930f02bffd7b9d27ca66356be5ae64cf0f3326a85d612ab15a379. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:40:19Z), 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/BRBMG6800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae96b47fbc8a1caf4f33cf024fbcf2f97bcb1701fb0a842ab34f4d8723499fb. Chain 2 (Bitcoin): anchored in block 957565 (2026-07-11T12:18:39Z), 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/BRBMG6900020.
Meu Coração Que Te Amava Tanto (Avevo Un Cuore Che Ti Amava Tanto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a115191744297317b7a0849cc203a859b2a7cf7081e7363773648f057d2e6a. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:58:49Z), 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/BRBMG6800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c33fc6045ff94ed70af7e28283b6ba96ebd0babff013bcd03f585d3f743284f. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BRBMG7300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a84bf3a1c7e754b39ccf68f3275111b5972a996a2e9af810c6872d527850d5. 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/BRBMG7300028.
Volte para Mim (Tie A Yellow Ribbon Round The Old Oak Tree)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd32da75d030b74d92108748cf96744508f1ef948c066d1a59f7471b619157b. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:10:18Z), 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/BRBMG8200419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae96b47fbc8a1caf4f33cf024fbcf2f97bcb1701fb0a842ab34f4d8723499fb. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BRBMG6900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ef2961cd1048cc469cde0498920d6cad28d52ac4d14ed1f72e50b4b0164385. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:20:41Z), 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/FR6V81988314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9fd796243d9e206ebd2b01cd32abbd903f851ff76d918de3d3f7f666abbd92. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BRBMG7500241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d34802078e55aeef3ac6c89fb6dff5ba2bebd2b3b293f02c3058e3bf2dd914. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/BRNYC0900524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583fe1552453537fdee8954a3dc183c86ed30a668e5bdcd3da1f610474ffa371. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BRMAX1400917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f832ff9edf94d3587ceed4823ccfe9bea5d01f42b2fb7893c0ea87bf9f2dfa. 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/BRMAX1400919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5213930afdaee4c23ee9944a1a832b2fcb358b631f2197ff5606cade1750b431. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:52:47Z), 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/BRMAX1400921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30a5923fc62f871acea80d05b06b52fb47481735f90f02513728e243eac26eb. 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/BRMAX1400922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71da25469ae56239f1eb7894b4d3644c4d6bae9db300374f40c729e1147a362. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BRMAX1400924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d462e81b34c129e0a8550392a7b8d6999ed81eac955c7513ebdf1676405bd79. 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/BRMAX1400926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09761692619c9a48ac5f71013500e9209a6bb9d3c60549142669e02f84cb2c30. 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/BRMAX1400927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8064cfa57811fe459dde3d0f266733eb367a690ac9b47310a4b17162350c7948. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:39:39Z), 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/BRMAX1400929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eef75d0e58eaa73b16d535540442456c9d6b27a1db77e9643b0745d1141223f. 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/BRMAX1400931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab6b8f08cf161f3198f326acf0e978318c90c3a5c54ec81bffee14e78fc723a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/BRMAX1400933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364d5a62065e72a7061f3fd5d9e1e0491c268118bcb4e2144d5583fd3eca5abe. 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/BRMAX1400934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013cf4968397d00253982781c9b0aa6c3e0fdf236d85e26d06aa1a83058da3e9. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BRMAX1400935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e1bdd6cc2759de41bbbe0c18fea0bfb3bf16fa971f18fa5225d787179d43b6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BRNYC1400098.
Estou Esquecendo de Mim Mas Não Esqueço Dela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c4a7c226b5eecbfbe480e12f8d53321d7f2c72a15b355530ed5d3fceb29463. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T00:47:11Z), 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/NLRD52348408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadec20b1429e282a1c7a0e883a9cd1e9124e341f851ca567ef3ee414f1423881. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRMAX1501411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9ddfdee9eede3780987055da2870d7ae2afcb73972074129a82cdcb882d075. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BRMAX1403094.
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