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 0x59e211b777f51098b0d5bda2dd86d80d86eef13897f3db1961e2151e458e01eb. 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/473c30a4-ca15-44b2-9036-f7dfed3e57a5.json and https://artists.proofprofile.net/proofs/artist/473c30a4-ca15-44b2-9036-f7dfed3e57a5.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 0x6387d6cd471cd9bec55114f572e250846a80b1bb5f13717fc6b95a338a615dc0. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DECT11100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbeb95565c90a9d6f54e42d7ec704ab3ab4e881011fdf8cb7e2ba6d7cf6ccabb. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DECT11100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b06ef9bca13972a40d6dc8770ad354bed9ec484239022826ade424144b4cad. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BR1JM0700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb286fe3c287ef65a5a0d4fd69b91f53ea1f9fd829bd0e91c23bcca339e10c928. 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/BR1JM0700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479e600b9f5390d03dd8aa2047bfa064206b1c85f5a6fd201134a73bf4caeab6. 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/BR1JM0700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30cd51abe1001c6ac1bc593e66fd79e8bc5111d9c9f9f122b8ee39365f3cc9f. 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/BX7MG2300300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a9f9bb9c3604c661965b7fb7bcb5ff5d011c98d3e898fb43376c472f1bcc18. 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/BC2Y12300049.
Não Fui Eu, Foi o Carnaval (Bruno Motta e Svaz Remix)
Não Fui Eu, Foi o Carnaval - Bruno Motta e Svaz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2adbb23123fc5c97510283af31ef53dcf19dee50845c676bc5e489938458ec2. 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/BCQAB2300002.
Musidisc Remixed: Por Isso Que Eu Bebo (João Brasil Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a2dcd85ba07dd86eddfdd4c9d5b07b9d385bcd4e42843087a10f543afef801. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/BCQAB2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedceefc802d103967ddd0db043c65df7d060b94f7f1c251e87d7679e2a8d683. 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/BCQAB2200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe3d7b80ae84ce5da1c594f3720412e9a06f8ba10e45d3873e250d30d11548d. 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/BCQAB2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72c779052cc90f8d89a8fd7134385e7fcc0dd13be5efa690950691ef8503c7b. 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/BCQAB2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8cc0b219a3d13ab515423557a2376e7123f20ada972b1d424962c151e2491d. 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/BCCLR2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb515849a8d78be72ed6baaaa8441bf6625adf85b18c1e9a42605e7de0007967. 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/BC7F22100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4d65e0cb1e12e389f4ba6c3c3c51b25843b2239146b713fbf762e904219bac. 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/BCQAB2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31b22538c418ebe95d809bdfcb26cc51989a3dd409ed71a06f19f70160423de. 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/BXJLW2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac250e67bd5a92c4889e07d3adb5d78cd14ebff098025720ce0992a09931bc39. 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/BXX3V2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d2577e9248ddadcf402c1643eb0b18f7d26501c4b968e33cc4ab33b7ac66dd. 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/BR1JM1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a810a2dcfcfaacf217cb8c4e6fb87eaa3270962bbcf6a0f3d83c5d70ff5877a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BXWZH1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f36cbbb9ea1f63cff591ac62a851c9b90605838512bc133b19f994d538cc4c7. 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/BR1JM1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e4d1d3a21ffdb8ca0b54f7d6356d957f83d6c0608027a77d13e92030eacd19. 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/BR1JM1800001.
Terremoto (Esquerda, Direita) (feat. MC Maromba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825e7ada2a4879b9654d2c01e7b2d8d4b08a2550602d2a399c996e3d80f05f2c. 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/BR1JM1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da29cd7ca6f8dcbe2c273718f06cb2a3088041ab09fbc891f2bd1fcc09a3df8. 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/BR1JM1700010.
Eu Vou Beijar Essa Flor (feat. Bateria da Beija-Flor)
PHODI PHODI (João Brasil Elevator Remix)
PHODI PHODI - João Brasil Elevator Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4f5567a3fa80177c818fc2b07be35e1849058fcc8d4b6ddd9824ca66f6af7b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QT37S2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4877a0bda4948c101bab18280d20c96eeb9d70bc1466b1b28b183c4c059f1537. 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/QT2W52400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794ed8a823d1036934fb8b9c421d332b37bfc3a2c7b093449ecaa5c220171fa2. 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/QT2W52400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fcd6e3d09aabfcd4b3ca15babb4aa325b3e1c5fbd2bd4ead852c3cecca76f9. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/BC7F22400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb328d1b9ad01c8869a184e5abaf3181460e2782451c08647d3b7fb89c15053. 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/BR8LU1200092.