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 0x32e8ae68516b09bda7e33cf3fee1ea26bc4baab7af302db9857b943a548a0af9. 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/db0c1f09-4272-4677-a9c2-a76394e55a26.json and https://artists.proofprofile.net/proofs/artist/db0c1f09-4272-4677-a9c2-a76394e55a26.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 0xc457e52ac3e2bc538b8b302d7e021d1a9c88a42d9539ed66dff163f05086d1d2. 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/BCIH82203946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ed9910416ec6a9043fdee55fa7da0620fe9805cda50c9cddd2dbb62f5ba973. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/BC3PG2304859.
Mulher de Verdade Gosta Mesmo É De... (Speed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d52d308e89c6a18f22b1df51cd421f765ee160a93d64c3fa8efbf865b6909f7. 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/QZNJX2488828.
Mulher de Verdade Gosta Mesmo É De... (Slowed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c90635957dd554091155dfd76ac11cc3662041856ce5ee905d8932436829f32. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZNJX2488870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf29c09ea82d4e1cfe6426df14bd436892ae72c6507de7e594520ac6f1ca35b. 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/QZNJY2495793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad06ee6cf9c702833fae6d852e784dabcf5fa4b5a2bbb32638d0aa475de2d3f. 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/QZMZ92554550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8637480732217245fbaec97ebf474e5e421d41807100bae418e5a70acd2a0d. 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/QZGLM2500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0094f28a91c7c457c109742030f108c8f9c21069fba82d49df5dc3a4a9da823. 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/US7VG2506647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3239ed62dc84c4f18c0026449d5bed935fe8a217c7c98c516d7e118907a50129. 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/AEA3A2319985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bf999496b3ecd89ba3f848b834e35358268f07b0d875482bd56253a09d903d. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZNJY2489337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2276aaf5873267e7a4122b6bbe271500b7041c8c95c6ebccd1796c50205e40d. 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/QZNJY2495893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0fc751b5c9b32f79b745d439921db54eaf9f0f2b0ade7fcf94bb7ee491c71d. 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/QZNJV2461911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf2f923adda56237cd6b3d0bfe401d47a20987c239785215c385ce7487f59b9. 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/US7VG2459021.
Set o Mais Diferenciado do Mandela (Magia em Forma de Canção
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefaadfd268bf840322904116629c088153eca7104f0ab221adc1fb81e8c6da3e. 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/BCIH82306848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7b400aeff37719b7de4548779f4d008a1478e4a973d86419ae3c355be644ec. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/QZNJX2394460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2bdaa3f7e70c0cc2583d35c7d4e60344316789915c9934fe70a74df47757e5. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZNJZ2315986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf610633eab3c9d90518e9f96f863abcb2c8dd991ff2bac741b06106d350b830a. 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/QZNJX2394502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae00f60bca5de33e501080aafb489d42029e2a84e922196edee66faea3b41606. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BCIH82303980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c6414fc8d53f004d250f38002c45aaddd7a4974c9d9aa7d3725dbeb86405c1. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BCIH82302703.
Montagem das Antigas 3 (feat. dj davi zs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb185649eb5fadb52da3a90e302a5f7658b70deb9f0294fddff14c36a6dc241ff. 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/BCQ7H2300006.
Vou da um Vidro de Lança - É o Lança de Coco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba84515918a6e9f0f56d90a1db32ab031d03e1a5c2896091ef09d56090acb09. 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/BCIH82201397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b86e475c702f3bcd0fcdcac92b37085ddccfed955582e8ff7b03171d9400b7. 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/BCIH82201790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55369836941f0e3f2c12e2da8fcb78e261e5d39a64d04e613954c2568d10a064. 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/BCIH82202159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddac47dc3caf9ca32a88271040670d2e3306fe11b8534acf99e6fb4a90eda74. 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/BCIH82203443.