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 0xc39c9f96a9047c02e6b3b6e85d60a7975f9a3f988d9e681e64a29048fef11905. 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/12d4d576-a0d1-431b-ba55-7ce796fca756.json and https://artists.proofprofile.net/proofs/artist/12d4d576-a0d1-431b-ba55-7ce796fca756.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 0x70c2424cef4f54580a73ade6aa51a5dee31f00ce58691fea224b8c71ac412c8f. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/QZHN71992234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af596256c0871209096d7a81950aa94263a8cd58287ee487c6fb12e72bb7554. 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/QZHN71992235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6568b23924ae1ca6275af214552ce823195308dc620d29a24f0f2d92dd22a75a. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZHN71992237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0633524bae2bd068e9d4a19a140c2fc20c7840a3a819d54e3d26dde45971470f. 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/QZFYY2002288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8145a4d9d855bc84dc0dee7f3007c20391ee418b61f57bd8c0db810f2d940ee. 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/QZDA52000500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfe6a02448117a629dbecadc6e0e1c24f5375e2a9c61e181e4527c0739ac98b. 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/NZAM02100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3137697bf97b025bda44bf913bcbdacc9af3698495dca4ee93e0d5ebb8628a22. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/NZAM02100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c4b914054ab50d92de75a24d3914e76d50d0f15f2fa5dd22a60c0e94ef310f. 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/NZAM02100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71b033e5622a8494df84f588a0f20f8293548c3561bed94403c3f579c477d2b. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/NZAM02100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a647f5b525de066bda0fa4328519efb8768800eb62b1689a73887d1713a527. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NZAM02100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58aa063c8c18eede2ef62f7b23f86e100637f5d09c2e62e309152734a047e274. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/NZAM02100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5d9f4dc0b4fd5dbbab27fc991828a885dc3d460760a3583f5c19722d297cb2. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/NZAM02100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ddf56f439618e59cbcdc0fe14813436b24f88b5dc66b0799973f2e9c346540. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NZAM02224185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d1667b2e4e96263e6bacf1090e1fbd1bddcf77f0fe5f9a549e234a9f4a0dcd. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/NZPB12400194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eef277d954b6e51e55ae2fea3c7a3a15ab7ed14fcceed3d24ad4b25af92e835. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/NZPB12403779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ddf56f439618e59cbcdc0fe14813436b24f88b5dc66b0799973f2e9c346540. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NZAM02224185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a876219b9ac9ee3a8f2aa91969555db4bd16e55f2e0423cbf4d67f8e70fd6ed. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/NZPB12400509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7140e772e206f7b48bd3e8dc8a1d523a916e0402795b281200e9fb563f01229a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NZPB12402912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d84d21abf0e08831d540b2e303457a85ee32896f35c8f84d0fb857d6c94c673. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NZPB12404018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7140e772e206f7b48bd3e8dc8a1d523a916e0402795b281200e9fb563f01229a. 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/NZPB12402912.
Carry My Heart / Lo’u Loto E Pulea (Samoan Version)
Carry My Heart / 'Alu ā (Tongan Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadde51cd66ed99f24329b7cb6a1476e7863162fa30093d46e75053f765812c62. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NZPB12501515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d84d21abf0e08831d540b2e303457a85ee32896f35c8f84d0fb857d6c94c673. 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/NZPB12404018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7140e772e206f7b48bd3e8dc8a1d523a916e0402795b281200e9fb563f01229a. 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/NZPB12402912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf81d7eda8055daa14f91cf07c3ab7a977efae6cae05968828b5b6a5c44e210. 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/NZPB12502380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c461f3ff6429983a1c86e6abaecdd045c0dc0d0b87060eee492b5a84086a22a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NZPB12502378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac14f185b31981a0ef0730aacb9e0cfc5cca3e9925016cfac7e057fd02d344b6. 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/QZES52120830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d9c864595ab8183f303c49bdc1a188b314db7f8be52b9290755f614834266b. 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/QZNWU2051995.