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 0xef0105777d7c34b0e0cc63aacfcd92530d9b9983ef2435c50055d8511ef3287e. 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/ad374596-3061-4567-8173-487b03025ee1.json and https://artists.proofprofile.net/proofs/artist/ad374596-3061-4567-8173-487b03025ee1.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 0x723471615b8ee1846ea62f5587e9eba9494c5a537f814086c7c83111396ed2ee. 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/IL2DY2300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188e6d16f701ae6def7c338d12bd9614529e46f06c1c4c7cf65bb22cdab5a468. 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/IL2DY2300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0df3b30c2c069578a88e80d5b24081b0fa76c9df8071449eb505303c269af9. 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/IL2DY2300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd9f65fd420d91d57537c0118b671205820b545e2b3198c4cb8a9a69d7e496b. 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/IL2DY2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108c7fd7817c06883cee11b8b7d1cdcd0de41219251271e81da5b04291815301. 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/IL2DY2300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9098dada273d4939efa2bd918a45866c3af495db9e2cccfcc901e96ba1a5bff4. 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/IL2DY2300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c132d2eb21f892ea1d2dd6b0045df6db31ae9fcb4738e1f532da63b278ce77. 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/IL2DY2300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51b941c1548ce700d6d4d7cf08e8334c6e21f59b42bc077c97c8b8a1441ed65. 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/IL2DY2300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daab4558a6ba186cb62012957791e25aac26da4171d3c2567a7b380b41f907c. 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/IL2DY2300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb2b1d1e48919d0c6b80ef98d780af037df02105a9c09231deb6131cf2cdd5f. 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/IL1042400272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea1a3f2cf9474e7ffd08b58bf41900df2a8418cbf1f5530e641eb38adfec7b8. 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/IL1042400274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555acb942953a01e707a80223582a73b6f2e9e06fc56221014a1d326ba59739d. 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/IL1042400276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9392444b7d24c39e9ab0c4a5db9509242bdaa5847ecfe7ab65fa7a48ec7a29df. 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/IL1042303131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514d4fe006b88c595b1699c065af430dbd3a5511f0025112ded277aa6a058ac1. 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/IL1042303132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320f0c26f226dfc38d5f640985d83daa2c4d376472ec3c67f62fa02ac9129b9e. 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/IL1042303133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4f7073bf6821611aab23df8d978f436f883c0de8275e1f3caa2c96fa7374e6. 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/IL1042303134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f8a8edc0ea61b769d5573e4c6a0e562b8f08442dfbd7e5d6a5fcc785363b82. 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/IL1042303135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466322ef705d78dc09c43e31daf5843aaa4203ced55dd638b7ed3027b0fcecdc. 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/IL1042403591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63fbade91910bcaa82c64f44da3f86899ba54614aa9acb2d44bef159da57aba. 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/IL1042404671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f183b3a804ea1d5056e934e0c80390794a984fa944a3cc7ff78277ce20e59b. 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/IL1042405111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac55c2615f7e567936589092bc38a8c8a30e1cca967b1a7fa34ee572331dcca2. 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/IL1042405455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf548d5fff66ff5dd0c3540661c985a4ccb116336610eaa8b8b399e391fb8e4. 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/IL1042405456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b52cd3b79c3d1c9f6927824776a45740cce12cc76e7d23334c25a2d97241951. 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/IL1042405458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc318a16afd5284c7d62772d2360040ce64e96f75ff4559f0695f4b8b69e79310. 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/IL1042405459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea81ab1e5b681a70110e79880ff05ff7359e4a4bf0c0e8dcfac05f69b28da30c. 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/IL1042405460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cccfa674f8c380065fcc0701ba894d7c5878b57730ace4411ee48b895c50e40. 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/IL1042405112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09768269ace30c59e11df30f8e935a5d6a79cdf0e924d134b5a2f03e0c10ad6b. 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/IL1042405462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388381c139ed82b5b2b2c77067e3c733609e89bc2300b7104aaf7119dd1032af. 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/IL1042405463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cd4c0d1e01411d310016700120f8ff42a8efa9ae4ec7f62b993b8c550e62b7. 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/IL1042301381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2116f6147abe079550a125bccc002bae5620532bec1b5aee7ff00eeab0d1f37. 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/IL1042301387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392cb8d77aec189460b71b2efcb4d9c8057966dd028e0b299b9199a7d5ddd0dc. 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/IL1042301390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e2f420ac937c36be8974c2c1083cb8a7523fef60833f0c81a725ea0c8d0d47. 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/IL1042301391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f183b3a804ea1d5056e934e0c80390794a984fa944a3cc7ff78277ce20e59b. 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/IL1042405111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63fbade91910bcaa82c64f44da3f86899ba54614aa9acb2d44bef159da57aba. 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/IL1042404671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466322ef705d78dc09c43e31daf5843aaa4203ced55dd638b7ed3027b0fcecdc. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/IL1042403591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647e0d6f01b82f1ec165a77d76e54c13b82a298f258f2221d1943c9ef4375ec7. 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/QZHN32325739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4e31a8c2253afa7220b31b08988b1aed6efa710faf05b11f285751ea10dd16. 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/QZNWW2271171.