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 0x47b100938d00aeddee68fccba1f53168e35d4acf75b2f0112b6b3af865be0d97. 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/ba29fa7d-e6bc-43a4-95d1-1ecc8ac67dd4.json and https://artists.proofprofile.net/proofs/artist/ba29fa7d-e6bc-43a4-95d1-1ecc8ac67dd4.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 0x58d665a8445489658abd03b0306dc58c43015b29fc4b27a4a49028463d591a34. 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/US3DF2101482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587803ee19d7edf71ba38b68ba80cbf68eebbf31006bca03075945aba0a062d6. 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/CAENV2450594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be97deb430a812d578c786c264b9e71856e4502fc7e5f7e724804be376c7b97. 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/UKXN22496135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bc2cd4923fcd6e2e9ced5cbc46bed21b449ff35fc5407c08b775c4b9ac1170. 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/UKXN22445650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b51f87d0bf7c031c285c274a7d80a46e0749e366d01ca3f0b020b8e0846dc3e. 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/UKXN22433712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf6eef787ad8d6d2809df24088992feab0c47db5036ef87259676998560e16f. 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/UKXN22403574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7b2105c7f1eaa1643c563f1aa1bac19ef6eb083811eb8bc6463532f94b20ea. 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/GBLFP2461141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf005e8ac818914ff2811df9791c0e0b3673f51ff45c5c2418acafb53490f0a26. 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/GBLFP2428732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e30c87c8a3c5c0ea3a67a20bb54089c8664a16d9e1b326a1fb0dad3221b9db. 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/UKXN22341740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ffa657005dd2e56665fbeddf92f04aab0438f2b61079472c38e9dc0c03bda3. 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/QZRP52319291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8a08ea2cef7b9e1e6ad295c9806f132083e3453077a77ff28b62a823867af0. 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/GBLFP2307823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0e3ab5ba0008d44d3345619f61cedf39c156612ab2041e9cc07ef898c3ff66. 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/GX3Q92339187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bd74e351432e078a957db5e562a7dbe5ca80e23fb6ebb04b609c4ae30ce4c2. 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/GX3Q92315090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c741868d4af11462392fcf03ace493e9fd288e91795ef7501bb77719ee90e5. 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/UKXN22215607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d666c049a22101fbd89e8f985f420ca4c2255876d80837223ff47040c4c9344. 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/GX53U2024132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1713bbcf31fba8d1f46bb6d2dd960132202efd1c943dbb3d198e0092843a51c2. 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/BCOHM2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ce2e0049770f152801544f13553480218cb48807e382cb86c84a4dff8b97e0. 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/UKXN21973967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acb1c6899c1cd1da7626a7dc70f3a9a683ba67b47e2181c0f3a3381d23da2d7. 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/TCAFI2157349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4722dd2f720135cce0141d7d4bf3353dc4fa53a3aa22953e77921f5de80c95d3. 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/GX53U2082851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1e90643e4fa40f90cab7f885488171dc4f13ab9d9cdf4b2cfe276094279f00. 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/QZES62545854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4914fb381cb314dad4372991ee08e54352647be8db985ae913e3c3a46d086d. 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/BCOHM2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09004f386d1c7925ec152ddf0387aee934818a781139da8fd600013de611162. 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/BCOHM2500001.
Xuxarada Ao Contrário (Halloween Brasileiro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831aef2b4ec3ff41d27b416afbb53e1f4c353c6ed084f85f925038539c2d7e3f. 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/QZWFU2486212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d15edeb9fd3393b04ac601c4de6a91a88d7b0c348276cbfb255ca3e6a67d3a. 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/GX53U2376606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2528d33d44ce7baf748f4f800793577aa0f5186fb77a312ae96c3304c54c6f75. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTBA2451398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6992ce2d66438d0ee1cf4fd078c1ff35b69b8748966b6cfbb5ade5897afb8428. 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/QZTB42440476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ab771483ea61008bdbad2fbf3c2b9290546c65a25f394da4e8a09b02b12f2d. 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/QZNWY2494107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2772b5051110b7477ac11ada3e72f1a658c25b588d9372f8c1a7d513d958bda1. 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/USANG2149883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fbc05ea4dcb56e6464c77c493046a58e3e5a72b1cd37110c70698880db5702. 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/BXE6E2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea20448f3735d1a3c07551b71842308e33eec0ede4b72da70687a9047d899ee5. 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/BX4II2300001.
Fechou, Partiu! (Eu Vou Pra Betonada) (Eletrofunk Remix)
Mega Medley Betonante (Betonada da Civil 10 Anos)
Fechou, Partiu! 2019 (DJ Ramonstro 150 BPM Remix)