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 0x89e0cf3f045e2eb8b88229bddc1dbdd54e99588533adcd30baf85acf79aa034d. 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/a29e1e9c-dabc-4082-abe1-7df5b29c98c5.json and https://artists.proofprofile.net/proofs/artist/a29e1e9c-dabc-4082-abe1-7df5b29c98c5.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 0x5f6fd373cd04763da2e64573833db2d07a6a1c0d6bc25ee3a632a55d6c74c53d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:25:34Z), 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/UKEK22000124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21581bf1c998108b90d05eacfe7732a48ee2aaf2d9836db7d8ae0620b7ea72d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/UKEK22100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a900a0d41caa90f275d5897fe1ec33c65af7b34dd7f51a308d0ae03a63e984. 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/UKEK22100285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb059a4b9d8cac7340f1f839ab31de35efc481717238c51a856bfc1a66cbe437b. 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/UKEK22000156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc7073448188dc30ccbb28950ac46e9f1b46402453c198d5b1f212dd274b26a. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/UKEK22100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06095c913ed788ba8a1195198071eed6e9edb734c25923ab5808799833cd3fd1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/UKEK22000116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e3b49df42d89dca9b71b27a706c61a6e491a10a91943bb9117143622aefabb. 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/UKEK22100257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5247ff9e81710ecd8d324bd501cc561aeb6255dbb16b5e59b5df3c100bb11be7. 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/UKEK22000183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc864b0a252a5b88c94e226d9fd6f185702e154cc47892fd2c900d13a672e82e. 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/UKEK22000182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044684bab09ede313747bc58820fe4776173dc7ccfda2bebeae4b1990b81f62f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/IL6652204170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57f64510688c7142c21b24d45fbe076f72ad4723ff9e28cec2e6b0bac7c8855. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/IL6652204332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbfc2b0cfa9ee3cf27dc089431d0b9367a32c6ce0e765b614e4a9139095f26c. 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/USANG2221600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbde9cc1b574dc2bcfea480a239883ab69183e25f0ebb6c4a861501bcaf0f13a. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USANG2230984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e53a649905302cb11b8ecf98bfa77bcb48ecfeafed81164414d459ecb6658b8. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/IL6652305552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe342470495ce04ba80c892a937e482992c4c7dbc6c0a9a896ab6ae431bb08aa0. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/IL6652306142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7689ba93ae335d865fcaa4b10ae5f409e28e5080814dd297e20ca8197a3525f4. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:47:06Z), 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/IL6652306216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3932e4aed6c5fdec1aaaec6cab11e5c457d7d88930f8476687cd896d79c3631a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/IL6652306218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb043c4e13f894537316c451390ff3bfb5db99bf3dc1a38bf5d422a0dbf8ada26. 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/USANG2264916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511343d36d5a6b1da900dcea5a1cc85d93c317fb5a1e8fc72685e44ad29a877c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:06:58Z), 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/IL6652306617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562c2e6e7eb8ade74feb9cfdf2850dccbbed7886852192ea034b3a1899400968. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/IL6652307346.
Taste Like Poison - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56529f624d8b8e17b437f256194e44752eae3b67b1507787757e3883bedac156. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:45:50Z), 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/IL6652307348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84184cd9b098c6efdc8e819853965fe59ea06b9f8562c810e697faee53b7a19. 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/IL6652409174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da062bf8eb80451ffd4002dd2e1d8d021e45f8e9c974f397ece148346b5fecc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAIC2437168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd017851a3b269c294ac7bb72f633b7a011f1b263dc853845279e5185b008e574. 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/TCAIL2456573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068089475b918933a573883a64a751a6b4a28aaf44e11a3d794ee14a3ccb7c13. 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/IL6652409416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff7f6d9ba5424986827f0ea1b6bbf2112a220258387b89362d53d8f74d1c215. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:25:50Z), 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/IL6652409523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327dd08ad066dfdcf3c9a9910f6b1ddecbb9208f8f1403a62f2e458a464ba4f7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/IL6652409741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bad12434dd40b7e182baf6acbad5be32113c614cf875c9d75a3ace513791003. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCAIU2457975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6163031ef4e0bc7d10664b4540ac0d9276408791eb94440a336ab1467d28718. 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/IL6652410318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c1f2bd6d960c2170b2e483d2daa8b4e0cbd9719dce728bf29a5f8a10a9792d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/IL6652411158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df65dcc366a1c1ac988610b7ada739192e9d41ec6aa86bf43ff16f2252b2f2d. 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/TCAJG2517049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7921470766a9d7ffa8f098ee965eb1a67a074cb0c15361c083fceb3dbb1619a9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:48:06Z), 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/TCAJG2582706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650f8b528272fb56ca00ba3cd7623479f2f207181c9d0fc456b04c5cddb34566. 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/IL6652511879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f37c124b5fbe4f92eaf7678356ac8f6f97ad81529aee3aba35046573ca2df01. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAJJ2578815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c2a2719f72b9b97341591ebea09dcd22216d58bbdc704cecd77007784f7a4b. 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/TCAJM2504107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3396984c08ac1727b3c9992c29185215a4edd6e83bf5c57b1f78a5b49d4452. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:07:17Z), 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/TCAJO2528836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6320321620fe82784a4ac5927a1c0918662b71045a2f5d222b2a8f68ae567a46. 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/TCAJU2574579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a19d56bbf1b11171ec4afca0b4dd465317f98062bec3d629777a0e6811fb18. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:44:25Z), 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/TCAJZ2559129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe634068eb17878639d816f899ec0550447c45a71b99e44587cea04e27f8b0697. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:44:28Z), 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/QMFFM2502368.