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 0x5108d2b1a93a0260994e25e801dac3128f2bfe7d65140d9bffc23fe95217e271. 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/5892d565-5efb-4c1a-bda1-6b49ae28c225.json and https://artists.proofprofile.net/proofs/artist/5892d565-5efb-4c1a-bda1-6b49ae28c225.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 0xee6318a0c6a14a2300c1bc207efaf961c29b32c4af420472c6ec81a9f0d1fc91. 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/JPJ901615980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f11323e746df49b4db00fd41d82889b5dc42a522c602f72cc225863f71adf39. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:09:36Z), 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/JPJ901615990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e926bdc299a9c40d45e176597da0f798840b20d249bce6d153e1bdd8023550. 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/JPJ901616000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c65763d12c238704e0718b83dc648d63b144efeb529e78524b3cc4b95df935. 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/JPJ901616010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96cff6a2fe42bb877fa782c1ec867d9c6dc2a5719efcdc5849f752a7d48be38. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:35:57Z), 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/JPJ901616020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714eb91b06cca70da261fe9f057dad15919e2520189cdc8fda9f6de246dbf32d. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/JPJ901616030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aff0b5ebc66103a474e3132197068af124a775ab82dc518b44cc48e2afd8b6f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/JPJ901616040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6089bbde18a5f158a35bc2a56bc91aa28840f088ff6736a81d8b9b9f9fdd7d. 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/JPJ901616050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd078d464ed868221c89ed2be8f8cb2c9b15af3cba7cb05d9118f61fe7d120526. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/JPJ901616060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5075258c2ee759b9d7988047ad64429bc1517df1305c9690b031eded1c2ee13. 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/JPJ901617080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95195a22ac050f7773b93fbba50bfe4d795d9bd531271671019fb001a920531. 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/JPJ901617090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765650d8f01e0c670d2a8f5648888fb5f419811a237bb505fdba31f49b1cdbff. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPJ901712320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6437f4c8c9d844662274eaa09ce19a4c041aa846bf27f2193175c79905770592. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:29:32Z), 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/JPJ901712330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0291aca9073cce759c4c4f0f1fe616ceda111409c29ac296fcb0408aef6a08. 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/JPJ901712340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421bacc709a4d457b2d5e065d23dd6ad380ea0f6af9246c7852842f5889bde91. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPJ901712350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fda0b293e42f277ee2b14d4c0e90c6937ffd845230c934dc59371445e64aeec. 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/JPJ901712380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9315294a152ac5433c564028154bc30f700860dcac5dd55e1408640e624e55a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:45:22Z), 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/JPCO01901870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4958d41d332d87517ee22842e62bba6953b49f5a2edcc9f582bc834c5d9e5d32. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/JPCO01901880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894f3d19bc5d2584048bd242f066599c78503c1c1d4f8302c3a8142a0eb7904a. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JPCO01901900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86873d4590ef050dd9c19845a36e9cc13ba1fce02738235c248f380ee932a677. 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/JPCO01901930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4c7b3d1a85019f6c2847c33bc0d75ce44b90cf59df88fda55998883bac9272. 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/JPCO01901960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2345c76411d320a21af45a1491f45b1ad83d0ae70b375d800b8221f5fc472b9a. 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/JPS801952438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024283873dfef3cd05285a51130314e1023038accfc00f8a9d1577036ebc2819. 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/JPS801952439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9273674595fcf9f61dd7ef72c582602321f6df05b2786fde094ad21654f04953. 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/JPS801952285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ac1168adce7844699ebd5964c85e2cbc822bfc280b17d14e5887ed9c0e88e5. 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/JPS801952440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18799053ada31824aa4230b365af48755db542c5e1ad18114d88290ef442666d. 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/JPS801952441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7240e706fe3865afe43f423723813758ed4c9670466de71ab608e60aff381e9. 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/JPS801952442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9ada628f484f44d51b2498fee809e50717e0c2a0f24660444a92c8d6c6a312. 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/JPS801952443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2733d41b5b73467521433fd54ed20d5f0d32c781f59e44644aefd56eac27b10. 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/JPS801952444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87611555a9e068f9f08120912a3d60201a5c5f2d331e618cee0d79b5788a387. 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/JPS801952445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc641c1cc48192b6394d295d932cebf647aa582bee7982314c1994999ea222f38. 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/JPS801952446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf548433689095336a1cc5b69a5eb5ac9373e3f878a7ce9aa5b69c9ee44d3e2c. 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/JPS801952447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861aafd264c68569f38bcd81ae5965261a2d647a55f10f647cfb7e89d5ded15c. 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/JPS801952448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbb5483b2a6b9b1301f693d815e5a976f976b33338799515a60871666ac4db7. 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/JPS802354262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2f336be078456a0e3ade4acd37a4609f0f67d5ab68629151f3e208b054a8a7. 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/JPS802354263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4839ac8decb7e9483b2515972c92ecce0f27dd36d009d472844abd5bf4882a. 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/JPS802354264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4793336baecbf2e4686f2568ab072996558b65ee12b28b386077fcad8b935cb1. 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/JPS802354265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1148c19a040fb5bb887a0ba25c3a468addea618d5ed9503507f97daf3743de97. 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/JPS802352165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec333a85e1a656119c89bf0d7ba101f0a5077c463d0f221f9b2ffe39d89024d0. 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/JPS802354266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf0ac20e54c0a5d531a9a043493e6c02aebd3e91aac4cf1a92383b939f1fd12. 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/JPS802354267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8c526b0eb5226625a85a816f30f4ff2d061aa1ab24c748576c6cf4c532ac61. 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/JPS802354268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a1fd88ae66ce19b3275400d760afb3871ad8c9e30d3e1ed28f80a1e049fd9e. 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/JPS802353810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae01b47de8c32b0636f9e00ae15205e5157a1e0877401e432836af6e95b21f0a. 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/JPS802354269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c36afb6740dfdfb82db00883c1430c700f64c7d7850d77084a4f9b869d9f043. 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/JPS802354270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b73d3d4b9e093cad680df91190ac0d3b8e1978c7d0883764845e9097a5d872. 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/JPS802354271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e4706bc188b6ce5cb7cf7d711f59d69c4d477fd45f0c6441d4927eaa470209. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPJ901712400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b1d50519f2d66e74f1d6b50b760b366f4190419a70d3bbc75f80b7917da71c. 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/TCJPR2268445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ab450705efa9e6617e4fd9d0e55ae75f02791d4f97905f6f547581fa11fcf5. 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/JPPO02003552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476e5093d57b624e660aa0342af9e698bfa30a77f3ca5a182c7979645987a383. 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/JPVI01707510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8effe747fb48a913a3a34fe3cf0c5f509967af6b486b46b38c5eea2ce40a3ebc. 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/JPJ901714700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82390525cc823b790faf3f2f460f16dca0ea11e08421db99daf1ae798c89f4b5. 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/JPPO02403488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdaf0f412f64822556a5e13219db9dde632f290160ef4ff976e7caba513acf9. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/JPH372000056.
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 0xbfde91d6fff2287c1bbcc9139e082663d8885b6cbb3711ba16302b450905a02b. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/JPJ901714740.