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 0x49b1232e87c524f855e18b3674b5f2a63609afb6998bd8b3a4e10dffd4e651ef. 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/3e7c8c4a-2ad1-43a4-af38-37decd7a5d48.json and https://artists.proofprofile.net/proofs/artist/3e7c8c4a-2ad1-43a4-af38-37decd7a5d48.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 0x27cb6e76d76ad6c0267561af40be9764ff3a01658c2c31bde5eeb597920fe6f8. 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/QZNJY2313147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1d20fd7c4a643c9a1fa717c2239ec7311f9428743f2e244358c3954bd2d63a. 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/QZNJY2418760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baa8621cbef6a510823e7e2cc8a38a3443549d03c3aa41eedf88ac23b0d6d85. 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/QZNJY2418761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cd5d2604896d81d958478806329534f64e282fc29d383cbec9aa0a8b33b68f. 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/QZNJY2418762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb33bf00fb2d70e981c1d7f22fc554075c03261f7bc835806000a945f6272aa. 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/QZNJY2418763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2f73aec8c372445649685f0cf2752794f878dc573aea9342a0fc14e97e5d5e. 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/QZNJY2418764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961f0900d2f5b1dc354d77b3b1ca3f3c5907ecda3da7a493439ddb8b54315b86. 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/QZNJY2418765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed033f22b346f0c3d9b4491077479df9aea7f64fb3f14e0e57e21cc966bf80cb. 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/QZNJY2418766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42738cb8d8d4f184f4b04f31731e9affb2a9b203f70b16aa30cab7dc76220549. 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/QZNJY2418767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8d0d2eb697d2ccd76b45c0f663d688050ceb7e77c9a18917763cf178b2d8d9. 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/QZW9L2283278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bdc69e89a8061951b0a15bc47d70e33e13b63fb6569172e0ca7811234ba4fd. 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/QM6N22264459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdf77c3aaafdda8a76bafe798b98d94e96fe1fdae53cc0df6bfceb9b49d1866. 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/QZW9L2283279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6948aa9d8eee3ed85cebc73f973bb91fa23554063dd6c627dcb3532eb6105087. 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/QZW9L2283280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d83c517353f520c876e822f1aacc2d85d894df0a08facd9e4f19a207d87431. 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/QZW9L2283281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfc7ab330cb04eee5e769c6d74f46768f34da900333c9d9f8564055921ca161. 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/QZW9L2283282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d503920fdf2118b8d52f87f318bb7a77e8acd1649fc3a658574a4b60828889. 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/QM6N22284642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2196d5d833cfe14c81316c3f6e3a518f1b6f7c03f9e3d69b04858940027393. 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/QZNJW2402771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb9bd94e97da072d6c63f40fa721e9f61f6761967504eebeab18cd36a7ffb1f. 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/BK4DA2402005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0256da46fe02c305ce42dcda16f60133ac51795c2aef6da3efb8503d2ff38e1d. 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/BK4DA2321882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5857348c7622d01ff4cb176334df1bc1b1a6e57ab5eb1fb77c430b6a337edb. 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/QZTVM2382187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493158e23bba92bb9ceb218b93b5bf4a3363e78e8138190c09281c49bbf19f4e. 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/QZNJX2394960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c982559089bbe83297ed38059646a24b71d4fe361bc2af3365916e789f90ac5. 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/QZW9M2223068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99cbb2ff455093a774982be7ffae8e8f1e9687b5a9048e4f15bf18375b66309. 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/QMDA62227268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ce682f6c48132eeb1b26ac2bef0fc295dc2fc3a0afbc0c945aff84c95cade0. 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/QZNJZ2219910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ba0db63d0ffa8d121c540ea257802b9e2d40461be476d22e7e13adc24c9eaa. 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/QMBZ92254180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d503920fdf2118b8d52f87f318bb7a77e8acd1649fc3a658574a4b60828889. 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/QM6N22284642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bdc69e89a8061951b0a15bc47d70e33e13b63fb6569172e0ca7811234ba4fd. 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/QM6N22264459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce404b4161d743369ea708d491e422ad0f9ae4dbef7826c615f310003396bf9. 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/QM4TX2251081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cdbc409ec706c4b198bda7f4a3ac266f9d1ce28a7c7bbd5c6adfacd58e2309. 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/QMFMF2128622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b35cfc48543d62e4d7931f5a0e1dff0f886c88d623513681bf957f928bc0c20. 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/QMDA72142641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cdfc56e175ea1cb3f75318fd2cb98264f52023290196e2ffcfb35e736e8365. 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/QMDA72148003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eda59661c53ac41d006908c48ce5b2e959e48212933ea242383e5813868933b. 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/QMDA62180481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9a631714c8ea004b487517e88dccf803d17dd23d95d7e06ea48334fb31bad4. 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/QZK6K2144711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33091dd9ad4447a4ac8046438eafbc1010c39cb06c291f4009fb5fa37efa2fdb. 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/QZHN82145896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a9369f1416955a28d8d9db664203e81af94effb29a73911b4f4c5781d048a9. 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/QZHN52165084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f2487df579ee6190bc37efed2aa6f72cc566e7158eff7b2259dd3b6b8352c6. 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/QZES82148088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cb5ba116d341f77ea7529af69348e74354587e6cafeda4089f796fe7be0c05. 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/QZNWS2060500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf483c949d81a4258d234f850b9d4639a0f33a744efee19ea7f53679f7b7c3442. 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/QZK6K2049461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae90516b2de67ca1a870da46115e832ac0fadfebcdb13b25e230ed52c6a7959. 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/QZGLS2404857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03e7c96e14b7135ae17bf989abd486a09ee70d4e1f300ca18349c4ceba5faec. 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/QZW9M2263078.
LOUD (feat. Piero 47, 3TRIPLE J, JulianoChieff)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6979591dd06eb7f4ed5b69d54252cc3fc83f35ae380365eed7fdfbc524925e0e. 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/CLEM42100927.