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 0x5eac8638a95b542b2ffc8bedd4192d5e28fbf66380882d56b85692581003bc09. 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/017dc348-c92e-4d9d-9aa6-3af486495c99.json and https://artists.proofprofile.net/proofs/artist/017dc348-c92e-4d9d-9aa6-3af486495c99.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 0xa7d9e196e18a77f32f7083a0c11047df51b35b323dbe34efac9d9a2f09b74a50. 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/USANG2464929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466f8860a611f92ac4c971738cf7489ba96e08e7f58191307a67013fb7bd23f5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USANG2431392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b6cbca528c72a800f19f7b8e3a6d9f6c49c8ea0c055249a009c219f3b0f9fd. 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/QZNJY2481145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eab63dfc62a59dd478fad36c9d5b8898740e7b39f3f22e467fa4dfde9bb78fa. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BXIV82442409.
Fininha essa semana você Já vs Vai seu amigo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4280dc88bea82654a7198cbea1de19cc0f3ca85027ffdb4baa503a67b137da31. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/US3DF2435621.
Finoza Dançante Fofoquinha vs Senta em cima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f04380839245e2a79b7ddef98bea311c5577b403466ead2b464353c366c7eb. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/US3DF2433554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb9c024791b53e0eca6c18b39ccc95a2e14e6e6dfc63f323127c0d599a5cbf3. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/US3DF2422620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67ae5f4dee325a65a6f244edb11a8dbb4398c8e3c4e9d5527a67940d0b1ce40. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/US3DF2415429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f6fe025ff3eaf19ee351a82987b5d27ec0adaf82374945529e922345a4b20b. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/US3DF2415010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa48b6d68f7f2c84502d39f82619928af9c11783e84fd0ac7bae08aae511dab9. 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/BXIV82459567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8967e43d5ad8f76da10ad588f5ffecdc16818d680201ffdc9542c92a99b464a2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/US3DF2402614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b7bd98b5ed6358935ca4d9d0757084f04d741c596a155065a95d59e66cb3af. 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/US3DF2402613.
FINOZA DANÇANTE DE BANDIDO FESTA DA GANGUE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ec66eff8fdc0645f17ac8e6b2d8900bc60f70d584429cba9dfafd4675efd8e. 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/QMANG2223231.
MT FININHA MERITO SEU TU VEM COM A BUNDA DESLIZANDO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec4cb90486ad4aa9b481e18766c00e6191bfdc336f0842a5b8d318ce29d43e5. 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/QMANG2218318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67c96659e2c33c7262465af2644a2d7a47d0fd9c0b54d30644b3d0f85f23fae. 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/QMANG2214003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311bf797205813c99b35f951eb2ca453150c1fc214995b65b9d9cb11c29cad70. 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/QMANG2211768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a2791ad8ed7ef0bd64d7aaad21baa350c9035d61fd9877bbef252032516c92. 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/QMANG2211066.
FININHA DANÇANTE SUPERFICIAL vs VOU TE MACETANDO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587b87c72652e6e21bf602b74aff9d1f0360e58319888251e77abcf31e925397. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QMANG2209986.
CATUCANDO ELA vs E SE MEU AMOR FOR DO TAMANHO FININHA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0717b1036926881bb1a508b07c4ca5bfd1b23f6baaf22c2adf9432f85ead6243. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QMANG2205880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c938aa4481711aa084feb288857442e87b8f3275cc1b13a5d4958ef77d3020. 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/QMANG2201287.