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 0x0c0c929b99a3975577bdbff9a0ece003f4903795fb756556d017c7e399f76c56. 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/708ced45-04cb-4ba8-8fef-d1d456aa599d.json and https://artists.proofprofile.net/proofs/artist/708ced45-04cb-4ba8-8fef-d1d456aa599d.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 0x0c671e0c01a5f6cf69ac7a9dac8f579fac70b79d0162d66d6cf3d6121c667efe. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCM9B2500145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38188b0a4e746eb60376e33cfe4d960c4473bddd59855f167d8e0de0db523658. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BXBXU2500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d53c76af96edace98aa497eb0a9ee54327b35b8d6245160c279fb35e3ffe7b5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCM9B2401647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aca150ca62d4783c3e8248fb43c329626b70673f8167dd5a600c1b0405ebb8. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BKDU62400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b12d00452323cecae9e123349d24b4598c7342bb4452c9411c59a2f041e24d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BKDU62400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028261053d1a88e19b6c758e942ad3e5db719af78c5f8fda80f1f5323719397e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BXBXU2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3512cfa62882e48720e44296353ff6c1d13306ac8d2e17e755d89de595b3933b. 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/BXBXU2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1276732839b44be0fb7285443b48a650fa5d8ba36ec14e15667ad0bc0d6796c. 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/BXBXU2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9917250ad48e11b4dc03711e0b02126be7707b7dc9064d3f2b4cf48e9e62e990. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXBXU2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf440f2cc92c0dce947c7e92d4517fa48280ed6da4fca8dd990e133d2dbe9943. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BXBXU2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41e63716d50a3bf0528ebeafff0fdc562974d82b83602b9c34c84c9ca4294ab. 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/BXBXU2500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb1ce62548393576d583d5fc73a04480661a6881e75b0a4ab3da91421459fc7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXBXU2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d303a27b1256d4b8cd160c99a6d5b4b8d6d0e8e736fb22b349c6e50392b361. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BXBXU2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c76a9264e4fdbf80e0558ac0292a7477239325951179f7098d5d823fa7e2830. 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/BKDU62500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767d6a1a880d0320ad27a606a893b1f0f57a087301f9990649502dca366ffafb. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/BXBXU2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a00ad3cda30aded58a46154ea2b24e05c53ea4c5a0dd0b580306c503578fa5e. 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/BXBXU2500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cc70bc2e5e498ffefc26799693dfa90a94276f15631ebadf480b918ba1c8b1. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BKDU62500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbe6f6a3143cbc5ff2f9d54ce053a27a05bc4adc28cd9057b56ad573c63da2f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BXBXU2500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186f6658e575807dddb228c6249eaab6d79ea587864b60646ad38e47623edf28. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BXBXU2500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8de92cceea643d1c91a9effc06cf475c1f954ee564377df345c9b1a6b4d8d6. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BXBXU2500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e5878679e6858a826b43c69f9fc03723688b18e96817a169557f9604d868f5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BXBXU2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2642d7a40e52656cf8ea8ea1741cda1836b4be3d1583743df3a5f316f06d2069. 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/BXBXU2400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede0cc4cae2384b3f9bc5721637afa060b8ae961e259456db8b0cdf3c9e45fa5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BXBXU2500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948e91b9bbdba4c35502a5724bf1bc793a7d8320eb80553a3aa02e4cac596282. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BXBXU2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18aadfae001ffff7c135227ad4f388efb77574d0f9373868e175ac3d8f1633ee. 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/BXBXU2400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f01d45a720e966440549ee2d24a763fb21be0b77d6f2a48ed0d3b6617b23d4. 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/BXBXU2400012.
Faixa Preta - 442 Te Maceta de uma Vez (feat. Mc Rd)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edbb9cbeb4cb87665f15ccb06c4bd30abd59482894c32d32571dc41ac698ed6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BXBXU2400005.
Hoje em Dia É Dificil Encontra / Menina do Job
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1166162e089903742274f9551408e6397b35560e2037f59d61adffb8aea1127a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXBXU2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3012180c025a44272847acbab2a0dd92f6e4c03a0ca4ab8e435d8115f70ea33f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BKGMM2400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397bcf213e3688d8f57a7b966368319048676c5823e58a14f59152dd92d015ba. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BKGMM2400045.
1,2,3 Sarrando no Seu Bumbum (feat. Mc RD)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4928d72dbdbe52ce259e750f489d636017215153b2cdc24faa9aae12ca58a9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ESA112448392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c92b37b4d7fa5f4413ad5b3fb701b38d0ec0aa68d3b271edc45722001dc5c6. 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/ESA112449458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632fca93e76912fa3cdd42ccca93405f4b3701d54ab7808006c0cb3ad31f22bf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ESA112449457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114aa9f54404e61de8cc407f660257ac3918a4c290a4b3013bcc16bf0caac38d. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ESA112449455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3534909466976a07785db5aac32e671e15da4654d377c902cfa35582e6ea6190. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ESA112449454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12afd1f5719eba74031b6a095c2e4e5212da596e4e5ea36f6e4b1d9b3e0d8b7d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ESA112449362.
PARA COM A MÃO NO CHÃO vs TU JOGA PRA TRÁS ENCOSTA ENCOSTA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4839719ff2a7a2a514e86ffb9d165a8aeca782f5244aac952cc3004980531e71. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US3DF2227201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e49828229268d50a0b60cb2dd0d39aa675b2c3101a4957561f0ef695f3be00. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZEQU2114219.
Não Temos Escolha, Não Adianta Pensar Vs Acelerada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50d897d0eae965bcc0d27196943fc5b9b06cccac2b03ecf4b298d12b3afb10d. 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/BCQJ62300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a0566ed9a113179c9eb315dbde4865ed2ac5b1cee1a12b65cc4d62d748c7d2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCM9B2401796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311fcc6766b54c465221dab7be8c9ac99811c4c16b169da5f991e5bed3a618d4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNJZ2479171.