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 0x6916a80515d00cbd826eaff5b7bb980ff60a6b3bb2d8aa16d4242ba721e8a210. 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/6018278a-eb74-4dc4-acea-7b362da98b4b.json and https://artists.proofprofile.net/proofs/artist/6018278a-eb74-4dc4-acea-7b362da98b4b.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 0x3041acd094212786cd35a773a7326538e0d7d1ea53062d0e75853c86c526e21e. 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/USDHM1410740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a23f550169d8b4ee978a82a9b8c2c13d2011d0c273c932ad256c6837fcb87d. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/USDHM1410741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512ee93e77e40bfdc9095f490fa293f5340a01ecdf61ad08c6bc767a3b0a36e3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USDHM1410746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42724e1359f27f41e8858ff2f6b30609e30b9d7e461019e263902019255df5c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:10:08Z), 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/USDHM1410529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9644d5915faf79ec031825f510de402cbc04cf5aedc685520661886be8944ae3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USDHM1410530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcce90fafbbd52772b14e4ae1194585c1df9791358d8d06c541ff95e17a2b1b. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/USDHM1410531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb0eef08cf02e67b907a3360f39f95f98c261a08b1e91924b2cf31190ec226d. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/USDHM1410533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3423c02cd5f7d7b30787656acf04e05bf14c7b4b621686b283e42932a8f8af. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USDHM1410536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d505c8e4590906e5e60b66f70da1153ebe4602c7f1b67298a8b757f2079d54. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/TCACK1574789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1a4aca421029537f05a49b48defe5cee0e2aabc2be92f696c6c32af3a34903. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCACK1574791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07735f19cdba13805c83009328e756ad2f1300d7f69142cf4f253ca1f84d8f73. 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/TCACK1574793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783942b57a8494c38f169407a5a11c1e74310512acef9e891c7731b3c74d658c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCACK1574798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330e7001b651e00f8ee35b9ff640d6d79bfa8fa487c2dd94ac056bbd3b7ad80c. Chain 2 (Bitcoin): anchored in block 957681 (2026-07-12T09:09:02Z), 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/TCACK1574656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c278a022ea8ab27b5b04e1798c766234ae7a76c8d764841a4b15ebe39761509. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/TCACK1574658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478ee331cf2b70420746f8cab0c7c499db2f5fe01311db3aebd2a38e4f1953b4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:02:32Z), 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/TCACK1574668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6618a81ef5dde4c4e3bca4aa2ce70d1bd55366744eb8183798978f52265bc1. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCACN1619281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5f34bb5c40533bc57be10188a3164958b1f0d4b15c7ff41cd5fe6b75b87259. 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/TCACN1619284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0793efb5737ae421131cdb71ea4bc1a0d78daa5dea71f442c73c6e585f31cd9. Chain 2 (Bitcoin): anchored in block 957681 (2026-07-12T09:09:02Z), 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/TCACN1619380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a1a3d7e4bbb07c1e0d9ec2faac255f88a6b354c1076636a46a360080dc3913. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TCACN1619538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818841e650d97d2a40ba2e19ddd80d83f4d3608ae8d90b1c3227bfb8cb10718d. 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/TCACN1619539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffe3de65497fde982ab831ce4bd7fde670f8c8ccdf6c1f3968f55951e6e3fba. 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/TCACN1619543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0423e34f4c9667438836e78c4b6d679bbefa07b8e47c2fb2ecc2c23c9d2cfe. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/TCACN1619176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66214a3a24914548ed020574f9f298bf3b37be71ad25381105324c40563ebe7. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:51:38Z), 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/TCACN1620062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ad77c393092fa0a51aff25aa6347708d2a5f19f5f83fef369b774e39f3dfd2. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/TCACN1622801.