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 0x5083e6e7afa4e6b190ed7d7bb84fd0571bf02e3704f73a3290682aa391b45f5f. 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/f3d73d9d-736e-43fe-a7fb-f844d45c984e.json and https://artists.proofprofile.net/proofs/artist/f3d73d9d-736e-43fe-a7fb-f844d45c984e.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 0x1a6b139563e094c45c22ed0f0ba6900405cfee0fd1a03a571bcd281592bed299. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/BR5ZY1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5778c8ae3e2c86e77a07ddd2a90b3e82c68dba79c5ea8a555f687b85cd45e0b0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BR5ZY1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4626e7f491692cf9a2cf7bbfa3bbadd22374a5683712a1527c7e28855c7e7088. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/BR5ZY1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180e2982171b90c4fee468fd5e287b3a0d5dcab926f8691a84ce82df9379db9e. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/BR5ZY1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d952e11aa823267ed3c3b5f08974222588df36ae8ac0144bc04819ce4ebd0b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BR5ZY1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fe63c31672399ff98f879ebb037fd362a1f5dceaa3157bca3c0684891dbe1b. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/BR5ZY1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd063d9afa9a4ae5e9fefcde23601d2e192a4c9fec6e1cd05a4c5ce852d6dee16. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USDY41694524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6af8046cfe17e34359011d0f77485593d3adb23b92ae3f5cb8e2a64b26d9704. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/BR5ZY1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f546e4078477c11d569bf978d621ca03f58bce13dcedbba223b76e55a2da47d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/BR5ZY1900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4679dd31b4777d1ab9badf0d08a532d7c5932bfe1c12534950c40e36a7e763ed. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/BR5ZY2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc044309c161427307e5df71e3f5b7da403877c5b16aad573bc235701da38cb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BR5ZY2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f155dd17693e6aacad6a43a59cb5e2eb90bf3715dee0214a37fe49b64b1e19a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BR5ZY2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b89b2c3fe796dc8e94cda9752c4035db107b726dc0b493b73891e955ccb3b9. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/BR5ZY2000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2add102dd52d1c84a9fc1b6fd991efdb992fbb112f32f5b3f8070d326b0d7e6. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BR5ZY2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23dc60b65bc52aba37d635eb425499534bd2ef9a669c60b73b5e48ca6b047d97. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/BR5ZY2000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7459ba47bb937d8dcfe179c7d1d0303e9b6580aeeaeebd7abefdd5badea066. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/BR5ZY2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97aed0f63bcac51ae9ab49ae5c59b07eab4a4585992ddd77113c2c77f57bf8b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BX44O2201075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda331bd966a8c273e06b2e57e98ede6cb196b0d60e705f1714a2e4daab2e8010. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BX44O2201035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758c82c664817398998bce058e03b9bfac450123576b704a925d9be65cc7409c. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/BX44O2201036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67797087aa23ca63198e57de1f275df5cfb39668d5f691637649fe3d1d4324f5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BR4TF2301420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1d7272aea2f24bdafa15ad202cd31742a9b85016a9d71d5cbab492b16a5ed0. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/BR5ZY2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdcba9c4c2f4afe98bffe30065472f7e7f33551aac64310ed232a03373dd023. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BR5ZY2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf624bf9299d0dca024de5342c59bb80596494ba9f205e77b6c685fd2931277e4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZW9M2472348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56d04ad2cc6a6a370b5d0b997d3bf5f5e7a1cc154f32357ce93ee92e5581679. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BKDOD2300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fabec4e9f80baac5d8a962d2ed9bda9c7e5269485896874b64d4aa344cd7e9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BR5ZY2500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe624b09b27d4115d665dc6659bdd6f7b381d2f48154511bec660a770267619e2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BR5ZY2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688fb498205c1e1c093edfa1661bac15fd337cd9e445406206545c07c0f163cb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BR5ZY2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05a8647f8e346082ece1f6c29a2f5fe89d84fa0bcf2186750f9225333ecc624. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BR5ZY2500001.
Forrozin de Crente (Ao Vivo em Maranguape - CE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812813a2820c23731453a476e02b2c07a4e50e1b84d6b08591566ea68a82b35f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BR5ZY2500030.
Medley: Deus Ama Te Ver Sorrindo / Oxente Eu Sou É Crente / 100% Jesus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64218fd05f74e9cd257755fdf7c4f417ceb1adfd3a73f149520e619bea61955c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRSVB2533867.