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 0xdf9d66e0000d9b650879054ec2241c92d124c47f5d01ef63b589fb5ae1abe1b8. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56585ee0-d143-4541-9576-982f44dfaf22.json and https://artists.proofprofile.net/proofs/artist/56585ee0-d143-4541-9576-982f44dfaf22.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 0xe8c6135af43bdb24dd20506e2d1a5182e247280a437d8b0834d2421118d6d4cd. 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/QZ5AB2034262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa721832923c1bfd20c10fafd90ac54f8984d48f9f2b60f85f5eb763ffd1d3079. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZ5AB2034263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c9ce03193f32c9dc6f391a347b3bb48c76e95f84fa1c1b3e18eb1b99692e9b. 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/QZ5AB2034264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd307b2fdf68560e5b18df1da968364f143282ffd542673317a9c99f2bc25383. 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/QZ5AB2034265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470b901239392f0eaf0b2de5ce77b72314e3d43a07d74a060fc240555b2ae658. 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/QZ5AB2034266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b00c4fa23ee38070508be3f3e654a362ac0d8e2a7ac30e10c982274a6af1fd. 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/QZ5AB2034267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640ec91599265d232f1bcb171795b4905437c089dd6c5aaa4dc166e86c20b54d. 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/QZ5AB2034268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863973f6093a9526730357b7c43eb72da309b41d5bc410e8123bfef2fa86e382. 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/QZ5AB2034269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa845cee6f5836efc2d6f34c2d1d531b99e3485e548e149152f05c4facf235416. 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/QZ5AB2034270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa559fef5d1aacfeee71fe884900d207b70f04633868302d3fa93cdfebe7eca26. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZ5AB2034271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0abec427b7ec37443e34ed14b33d06eb219f00903386979aa0d35307ab8dd4. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/QZ5AB2034272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c89d1f98291ad01ea3ad1aa19b81a777e8917d213be5c516237138ddcbe2f5b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZ5AB2034273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0712b2ead5c23131879632d140e8f25d307b7ef27f7c0b6ece792b187480d9c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ5AB2034274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b4c6f50b0bfc388561950cbb8030e671c240b2ecc74412818910748a15d97d. 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/QZ5AB2034275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf61a10143cdcb87e0e48cd00d3f3617372534cea5b627f5290f53526d592a96. 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/QZ5AB2034276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb361539d6953a95feff78b9dabc4e1e0eb1cdef2391df53fb18afc0be94c04. 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/QZ5AB2034277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe512872136c11e9179fc2931f0b985a4dab21c28e9cad6e2be40ff373619eddd. 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/QZ5AB2034278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51438e8ef8f6fa9955bd4932a6ef31e99c7acf8f41171f5de8f50eb6aa04a84. 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/QZ5AB2034279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f9aeecaaff280d0ec29c31373ef70c0ae870f6e531ace7e96e0aa2f42fe268. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZ5AB2034280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64fd8d978249c010d843d73726e6dbfdd398312b8d2de25d3c54d002c859d6f. 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/BXBJF2300048.
Somos Todos Resistência (50 Anos de Hip-Hop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbd9f887a4a396742578b774fcd2686f4e1e12e3919306b56cb48f86216626e. 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/QZW9L2387223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474edac9f41ca80a59ea8353efb00fca2c3b2cd34828baa73c04029fd6589017. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/BC0EO2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfd5788b2b3fc4d0d66b21dee7cbb634e27b3db957eaa334a5320f40fea8f22. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BC0EO2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6713f6d7b7166040b860aeba07235a423cc7cd1cc3ca3399750506839dc8be1. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/BC0EO2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11080e747b32187bfe6d317aea4c0dad89c413e2b4b78fb4a85e305207ad3459. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BC0EO2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54edfdf04be94933df3ad38cd7c29aac4038d9c42ee4c5b763cfa2f6e8b3b947. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BC0EO2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb971141b0c0d6ae9a4ed34ee83aaa69fa6f2e58e8f07e5ccefeb97a67d18c07. 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/BC0EO2100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bc2aaf7f6b8e31b1ea2ea47b05137d39aae56dadff53397eb46127b5a96275. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BC0EO2100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d523e65a1bc9525ef955c6d9b0da647cf49b8c961f551a72e6bbb86620517e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BC0EO2100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe749b439af68cd093ba59d560e36ef1f829847f9c81b3e3972c6a168098c455c. 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/BC0EO2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71d23511c356582c1a8fd183caa5db39ee863448f81f063c78f9b859e3aa1b8. 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/BC0EO2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38981878ca8eb05b35f24462de69c8ba13659a385ce8dbeddba4292c2969b0ed. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/BC0EO2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e52ad1cbedb24c0132cbb264b84bbdd0a5bf502e40d13b1b9c3531fc1d9f78. 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/BC0EO2100017.
Rimevangelizer Cypher 4 - Soldado Espiritual
Cypher Rimevangelize: Sobreviventes, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda62d58244e3ff3a61a46c12995b8a92575154bdd520a9e3c1e81625c225a6c1. 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/QM3DF2160679.
Ide e Pregai o Evangelho 7 (Edição Especial)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c70634b842115015091edbf0874097f7918a07e7c23cda829d3265cb0680ed. 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/BR7552400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322158849738a3950bcf3f4ed7f639f709009ded6f8bd7ac1238356269768f6b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/US7VG2565508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f3477fab51ab13e8fa476fea46649ce57aa5962025eaa7c2cc9bdd5dd3f60b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US7VG2565513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956bf9fb7b83a7dfe6b618e471a20dd9e25d2e50f181ea5e64b007117d46d3d3. 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/US7VG2565520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf267a031c8ce95a409e8a6fc91ec71326c3f0ac17a72adcc3d10df1f46fe96. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/US7VG2565521.