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 0x1e1ab00ec49884ce5715339f263ee5cdc81245f420e7abab0b930ab197e936f9. 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/d73383ee-7825-4cb7-938f-947b45006653.json and https://artists.proofprofile.net/proofs/artist/d73383ee-7825-4cb7-938f-947b45006653.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 0xcf70a169b6b35acdef1be518ef516af43f403c329e0566cb858dd3e23c6e1931. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AUBEC2101867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012e281eed37c316bb53813c78adf47c23a725ecad138bc8f9656982be341169. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/AUBEC2101877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaff1348b29741777cf0b8e40a9e84435e968b5f7d4063f527e7f23bc7974a74. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/AUBEC2101878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7463ee532727b53196d1cc7bb14aa3257818885265dae5da725bc1d3c4f58dbe. 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/QZDA52190339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0ebffc1fb22f740bb13ca660660239b4791738f0f9fa4dcb87b72e47e170bd. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZES52132286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc59ab4cddb18d6fd13fda8f50bfc3ac0c0e1c3a8b4e6390e30a6c517589524. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZES72122240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4436fc6380a8465dd037f2f1cba1d5f3003cf618938c332d64a042546a3ade2d. 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/AUWZW2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce660d99b2c2747b9772ee0e5a0a40d2f592aed8cd2b12a561b541be60b4e9c. 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/AUWZW2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93b110105f4d47c041fbcfb4651822988009e4ae201acaaab2b71eb79823f6e. 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/AUWZW2200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23689377340df26113b3af3d871a4ccb3d5679ba41fc0e4e7b854e83bffdbc2. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:26:25Z), 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/AUWZW2200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d5ff470d819d6e2e865b0f94ae4fe4c7606d95e6d5ea659ee265c6798718cc. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/AUWZW2300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e9afeeb7fe7057f378dc7db734eb3dfd6f22809042179bbeef302e02514438. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/AUWZW2300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71adaef70845503477fcf4fc4589ef34f8ad0d353119b29901a9b949e85047c. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/AUWZW2300069.
Goodbye My Friend, I Will Miss You Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cab2cd92c254a00bbc4de950c97dfa36fb25c6f23fa170c74cf9ffca0745b2f. 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/AUWZW2300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfb9d58d1d4ff7a8fc20f9d579f1e9a1406a97e82e8e2e10579e7d89b74a526. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/AUWZW2300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb083e037f77ac5abc6771311b12e1b057ab7eccea26cb1427a5ac78b70ffbf. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T14:50:32Z), 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/AUWZW2300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585285b6e3821f2dbd3c482e2aee2ba58baff05413bf0d5728c20ccc29d6e492. 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/AUWZW2300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfc306ac15ea04a0385c2ecd38a4942d342a27db25bbfa6fddb8e27e8c02516. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUWZW2300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff6611fbaa0fd8d79451bd8359f6713e1c4ba969772a39198e71459b7b3a499. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/AUWZW2300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530e7c783172c5ea5136a6beb753b48abe4d24cc1e3ac0e8710933673c37d8d9. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/AUWZW2300092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f86ec82a8fb75cad5926ac844e6139f8204a3ee404108d8e2806ba03d01eba1. 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/AUWZW2300093.
This Song Will Make You Study Better I Promise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a1150dc72582888d2f1cd2c6d50fff73546174a51007265574a78b72119587. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUWZW2300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdde0cb6526249e0a711c80c26241a9835840f79322bf3f35806591297ca9ee. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AUWZW2300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1ffb5a0315e6876c3b6e5d616458bee37858d5a983e46f67413e888bb4e275. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/AUWZW2300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3107e7e3bc01166d23330fa9d3e6b590391720a6871c80edda6cdfe38a1d8aa. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/AUWZW2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb262c8c2580e112555d3050269a1aa2a7f1c80d060d33bcd9a8d0dca86c2f714. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/AUWZW2300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55002af81a3ef8b2b0bb930a6d642fed48f84d4966c85d27496fa0dba557a78e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/AUWZW2300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5616660706d2c004b1c943ffcc0b4b59a6ee3771b76cd28daa664067acb47d5a. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:36:01Z), 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/AUWZW2400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5965276c797b475d1d4ef8dfdfeb820dc0e2cc94e1e42bf2f1d4fc38cd381fb. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/AUWZW2400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe165741844351d41fe733e9f8f5981bf2b0ad0f5c554d1874179f4c7c7d5c23c. 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/AUWZW2400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09102fd715290ef65801e95b4512bc01c039c07b3cd76f9d0cf37abbcd0766ac. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/AUWZW2400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d581353fb21aa05a22f53a2940301ea7107f2c237aeb8f4f70af40ed0cc64ae. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:55:06Z), 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/AUWZW2400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea01c1adedca0bd141f3f538d976a1d95a8e39d51186c9d84a740119f6fa1156. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:21:29Z), 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/AUWZW2400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf056334ef877e1b7a6372d77499503c57972d90cd16be5c92e952d5350ec8692. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/AUWZW2400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2952678c61773e60ee3ac147a3dac5ee22b1781b7d7dc5f53268b93ad800eba. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/AUWZW2400142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d63ae0a4653a5d3654859bef6e1680352c1391872a87ca85ef8717b0a4180b. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:25:47Z), 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/AUWZW2400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf271a49d395dd2a1d1051ae667002ab1de9fa51fcbed5b1b401abcaeffec6606. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/AUWZW2500146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b617ae1470ed2669a16fdf3bae5701c32370e7ba42eab0fe8cea4a12d87cac. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/AUWZW2500148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9294557564af0b627158d6346f7838bf821ffa299b7b83b3e0a704a7b59fb559. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/AUWZW2500149.