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 0xa7dd501bc890268026a7a602ee18179a064ef3f68de9ebc7b5b8653eb87c0b98. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33f10974-e6b6-40f5-b49d-dfd92b29b74d.json and https://artists.proofprofile.net/proofs/artist/33f10974-e6b6-40f5-b49d-dfd92b29b74d.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 0xc1206ac80fd471ddc0702539acc526fe7267cffdce69442f44afd04b9a2d381f. 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/DEBE72300926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262d8bf2cb4752f2b30809700a623d5aaa05e57014cb470c1e3e8e4faa9fe1ec. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEBE72300904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e28352320189c8700d7ddaa3019541e0aeee1709bb23d81be8bf4bfe92cfac. 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/DEBE72100867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707622e03866a6fd059362ce9f81c2b105d4c0badee8f11c600d8b34aa08cf0b. 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/DEBE72100869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f92e9d6c3269b20882d49fef50e4db0de6395ef4402c07078dd52cc793a66a9. 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/DEBE72100870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16819dff35bb195d7b690e432c7191033b2d0f928d1fb2e04e3b3d14f6fa9d1. 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/DEBE72100872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ecaefe3ebf999ed5936af63e99be7a16bd69934f3ccf6ecb900a1ec0722e9f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBE72100747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a5df12eb9b1e9d3139bb52f13d1cc2170ffeb169932d515b59216da9618053. 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/DEBE72100703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c830f6143611eb5635528cdf73f9eb2fd588a7c2447bed35dab8a87579939b. 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/DEBE72100623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bd0fdc44f51b1fe98f72d60e82955a1018ed5deb9da465c96d540e23ec73ad. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEBE72100873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543c2e39865185596a0d6547648565f34cbd211822350bf9aa4e7099fb5e40e4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBE72100875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a83071bcc47822f2ee744757782535f370bbdfaa04965d9e2d6e7e486174fd6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEBE72100877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04143168d071a9c7d1f7d77955ff25e7d7fdbc17aed3b92b980522a1ff432b88. 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/DEBE72100467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39185a8d1dd8fcf0f80d1355bff06eed6997326819f55a7987238746b4319f17. 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/DEBE72300932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ce7afe9b63b52deb7ece02f0b6110172c3a13eca12aaf22a02b93046cc2814. 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/DEBE72300933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342d79e92c564fa5a10c42bfeb618624bb0b1d3a3492db905e88af1eecb3fb23. 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/DEBE72300934.
Heater - Thandi Draai, DJ Clock, Mphoza Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4212f3a67631eed5031ea3610f510eed463bd2e8f450ba2c4974941ee6a6c8f4. 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/DEBE72300927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3af9cea51cfef4721f05c2a2ee2727a6c396f5a051332061ff18333cce40db. 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/DEBE72300936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262d8bf2cb4752f2b30809700a623d5aaa05e57014cb470c1e3e8e4faa9fe1ec. 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/DEBE72300904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7eb83f2fe0054cf76d14d82f3f96af051c59b0f75556778a86b498a2cb06c4. 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/DEBE72300939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e333b51644bd888d16c00d347715ce3e5da18009655993cae392e40b77f9ed. 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/DEY472279104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afdbec26ca2e9ca4031d947459e2dd18995ce358a815a833cfab63d8d836348. 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/DEBE72300940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dae07824eb72525534ef0c95cacc15c86131ce1b058f1a002f77601755778f0. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEBE72300941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc37ec9a4a8db3c3d2a7876b011d0c17d8f84d0443c544d91f1f37716170f4f8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBE72300942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b68903f551dd4d6c472006f12e1145a3761d1f382d7d1e9037cfb49e7aa59f. 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/DEBE72300943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf705fb9bdd2b30152bb2d2b7b249d4e2b5b2b78801582ebf5319001bae7a275. 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/ZAVDU2200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828c3bf89562656a10955482b3cc9d2acd5ce7b8bb0bcbf4c577641c1a3fa989. 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/GBWNE0800336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c830f6143611eb5635528cdf73f9eb2fd588a7c2447bed35dab8a87579939b. 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/DEBE72100623.