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1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7a1fe38320ae849a89d513cdf71e28b85cee28b7788702289a77b2151d803cca. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acc2137e-a392-41e6-871d-263ebf700225.json and https://artists.proofprofile.net/proofs/artist/acc2137e-a392-41e6-871d-263ebf700225.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 → block OTSBitcoinBlock must exist at that height 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 0x526defc5b100969f95b00618ac213eb87cabee54d0d8f953b4c958ef0b08ad0e. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/RUA0G1504613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa497a9b60b2062d06a09421903a3099a015413eba036d6c685bc328faddf96a5. 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/GBPUP0915203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad421f503feef6a1fc638a99410aa2b3b3a38538e4e152721c908365d9a0f0e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:23:40Z), 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/RUA0G1504594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270f83ab9925432e8c0606e9f17b6918156a447056c67261bb5953f965891b13. 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/RUA0G1504587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0ff6fd8c3f0fcff6e7dc1384760f8b3259325216d089dd4e5be083efdcca45. 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/RUA1D2363521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d50ddce93f1f160d2ee037d725b63a5abc9662b1937d429a816e0b3ceb96e58. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/RUA0G1504629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0561756e54fe02006b59c85109af8e2edf01e06883626db6ee1f145e125681c. 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/RUA0G1600253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b311d38ad47405894e35b49f843c84cedc55e7b2914df4e59a222fc4701980. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:32:56Z), 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/GBPUP0915210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5288e790f06789d0d1a04a0401bd01a53f87a140f1f3d5c9fdbcbfcf9ed28459. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBPUP0915211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece37c0e3071e581a3aa682c168dfdf3edbffa3c13903f119bcacc665efd958d. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:23:45Z), 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/GBPUP0915213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa824da0201f7313f5babc972c51fda44e40cf0aecedaea7d5267763d258b80fb. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/GBPUP0915214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ae2012f123eb034b0deffcc50797b479f39364639c123ea4f01b9f63afd944. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBPUP0915215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ea42f4ae0e6f8c245e285d1e660931051ea3fd6196e063d5bdd95742bd13a8. 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/RUA0G1504595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3559125f14d6879a797fcf01d61d00528afbbb4ff914b18a659e4ac70ea5422. 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/RUA0G1504615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ef16465bf192c35fdeda4d36b93442aea5f59e829ed38bff43ffe5fb20249f. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:48:01Z), 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/RUA0G1504626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cde9468506950f576df0daf787f5bbc330adbaf9df1c405f699471699d79fa3. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBPUP0915221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07aa29e9bbeb8444f1fede880989197bea76d2d7ff8ea275b3d8138299d0c976. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBPUP0915222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52fd8e9e8c36cf33c989b3302b3117b02c027ea717ff61794a23b8f3cb4a3ba. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBPUP0915224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abb20dd28a58c3000e269a27b2630bd5d2947b0058dab6f09971a2465e68163. 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/GBPUP0915225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb479899ad93a04334f6119f79cf9ca1d5ae5ac17bd565ac45437cef40b260a. 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/GBPUP0915234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe910b56d7d5e63f5ee2993add39663caca9753338daff1404c79d8e6e8cc66cd. 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/GBPUP0915237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd736b04ae9493ad1df2f9276b6fac50e1b3a69faa5162e532cc85e3d28e2bc87. 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/RUA0G1501243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0de80b40131c849414bd5382e4d8ef86994afae9a8e1e074e848d70e0b58a57. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/RUA0G1501244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd736b04ae9493ad1df2f9276b6fac50e1b3a69faa5162e532cc85e3d28e2bc87. 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/RUA0G1501243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce55ca52143faa3aee99cc189e971e367a004cdcc6d0afe34184717189487db. 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/RUA0G1501237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b41a5d9d509d18870bf7fcfec22783287ee28e68dc3a9bb785acdd787576dfb. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/RUA0G1504617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c06a1fbf2f87fdfebc7369a1b0ccaa7ea424a738d5ec532b835234d41331dd6. 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/RUA0G1504618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c433fa92feeb684b5652c9173b31483ac213cd7d5ee397e5483a899f158bac. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/RUA0G1504619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3484713dbfbcffc2980f3a92ae548745e34022da4f4887420b8909e5e8c7feb4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/RUA0G1504624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a0ec2864c203fb8a7b7f4fdc3bed79f2758c200cce23e0b13e5b42c3e08d41. 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/GBPUP0915241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184ad9aecee06c6caef3f766cf9ed4e39e624ca30dcc5e27712c41b3d47bb59a. 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/RUA0G1600258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fa107b8e05f02fca53980a5ec3194ad2b0ed82e93a94d859559ec1da5b1d19. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/RUA0G1501250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d65f57e5b0fdbf2a6bcaa75bc1b1da1b9b135d6896ebfbc539f4a51c999a77. 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/RUA0G1504597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15199b041d1c87c1a52888b84b1808b6d8737058653f3df2a026bab8a611cbc3. 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/GBHCD1716965.