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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ed898030ee59138ce0ea9b92e07c7378163c8785306d66dd1b9bf85ce61db5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d4da7a5-23ef-4b45-9aa2-4028dfb1ab9a.json and https://artists.proofprofile.net/proofs/artist/2d4da7a5-23ef-4b45-9aa2-4028dfb1ab9a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b731f3419519228c51a9fee3ec313df2de8ca7909835649f9f94e688c09f27c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRQCI1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4e06f11eaebd93550765f9f79be42ea20b100c943139405edf40219979d731. 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/BRQCI1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38c300b99e335d8571589748f442737bf61edbccc74bc193372aa947159f5a8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRQCI1200011.
Jah I Ras no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd276e63ec5f3ec25a810bc2acf148fe2a9584280b4944939e27a17a5c43f1d9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BXSSW1700125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d588796a22ec96602b550b8ef63d97d207ce0f4f6aa739f3912dce97f433a8. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:06:00Z), 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/BRQCI1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae03bb7a42c63d2fa29ffff322b8979ce230c873c5aedf9254034cfe81c9738d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRQCI1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b42b8a2d373abb7592c4a9d4c8c8ab57f47f71bac30989317bec9bc2470cdcc. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BRQCI1800010.
Jah I Ras no Estúdio Showlivre, Reggae Brazuca (Ao Vivo)
Jah I Ras no Estúdio Showlivre, Vol. 2 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846f928992bcbe6d26f30713d8e2cedbd9472773512243c8ae7bbec2b0336da4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BXSSW2200978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eb0c824042de8313c2a69d12e15b104a585a58b379778bd0a90cf320cc7a41. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:36:39Z), 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/BXSSW2200979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44b00f5c414c5ca6f863b67c0bccbdae9a6235c0e23906f6b24f8e63f31c93a. 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/BXSSW2200982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1142f7faf25e2104d29991b4c0c1fade4b57cfe67c7a2a926609fd2d9158b74. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZW9K2465805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c78e2f340103dabb8d215d6b415ce8884c2708e77769c1969f7ebe526d678cf. 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/BRQCI2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f296285d23d402b9310ae62a15fe69aaa5adef0966d8989a8d8746342a7b185. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRQCI2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74be8a668922f3db76d69996835d7f98dcd9c6168255f9c6a3eb8dfd29584bcc. 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/BRQCI2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a55d2d8c738f4388aff0eeb04a16cab32b9fda40b9473529b93615d122191a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRQCI2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab0c5d027e47e0be272defe7fb2aa6252b70f4c9c0854e1bf452b3131b7a055. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:26:40Z), 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/BRQCI2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9473c15e6a4de679d0b01314a2a875a9655153846dba7b1a35749e2e34e2ad70. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRQCI2400008.
Reggae Brazuca Colab #3: Amor pra Todo Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273dcfbf4f94bb28df55ebdde4c589bf442b049742081ffbcfebc6e068c16760. 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/BCPRM2200002.