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 0x8e8d9a3f08c5e8229e1125f701ab42af714987d0f1d688e8ea22d1eb2f33bab7. 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/713fc75d-abb2-44d5-900a-7d05036cd54a.json and https://artists.proofprofile.net/proofs/artist/713fc75d-abb2-44d5-900a-7d05036cd54a.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 0x1a740af0f37af4fda0621c3d71f739179f1ad751c1870140ec5201b20d4a0a86. 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/QZZ7X2456964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d90858f086c4836302a4660cf328174c6741c585cea09ecf641c10b5ace372e. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QT3EZ2438755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ca2dac3245f329bb788e828a8cc5f8919ddb8bd17dff7fc155cd1ec7c3647a. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QT3EZ2438761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9018a86bff2c9409a9efb4adf2127e5f656accf0f405554606b52853045c0c52. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QT3EZ2438763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e2a4b2f39ce5871a4e5ae5c0ffb6d0702d11e2074da15add4750f250e99001. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QT3EZ2438767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655c33d4af197c745484c654cba8d76d7c389be081a45612030dadac655a52b7. 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/QT3EZ2438770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6475ff7bab429085a3d28927e2f4a6f7f9357c03c8ac88f111a77845e1f4d63. 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/QZFZ32535015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f33e2e0562ec347348501edf67d9e42b8b7da03706ad61ab2a9a258078ddd9. 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/QZFZ32535016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a082502c5fbdce41e576ca1066accfccb4ce1774eec1e1b219cc230bf4f20ed. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/QZFZ32535017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee9d7b6b1f7e3b7ad011a6292657b0d8fea86444435f5fd89703cc4a84e92fa. 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/QZFZ32535018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd89be144970cae2eb6d021ad40a2325bab062a230c0574ddc2824374f245da6. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZFZ32535019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c865ba13bbc17a09f485ed3c29f05cd9fe672cfffe0d8f527e6c1b641f3523. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZFZ32535020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dc97d11d820a6fb621706cfb23a7da53d7db65e00ca8332afff609f7d3eb6e. 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/QZFZ32535021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd8902e5d5e88e3fa80c9b310b0d6030656b5aab376df165b4c7bd46fa4a278. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZFZ32535022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac09189e6484b7623706b521f95a7916fad66fae7d890e5cfd724d6a05b97f9. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZFZ32535023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93b3df0eec10da01b6e59ec6388adf5001e5b6328b0d2545c58eafc99533fba. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T19:00:58Z), 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/QZFZ32535024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3924787509539b2ae8f416beff0c833df182a9660d5f056eb0ddee4969474b2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZFZ32535025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95449d4fe5335bb1cdd68d635675804c6d2d53437e7e62c2faabbd8cbec897e9. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZFZ32535026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86721332d99ef432b61c77f2e888e8ce5b968c75cc97f6b6346d412f1ad137fc. 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/QZFZ32535028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7aea7d830878ccbc87af1034b69a5b8fda1748ac1e2a9ee2602323ee975689. 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/QZFZ32535029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461f4c304f6b547cf0fc4c18bb552deb07572fac2196dc5a9a9f8eb70af5ac8b. 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/QZFZ32535030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3dba4867be4e0a991a17d1d2aad69cf252d7b3392107f279d249a5768a0d26b. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZFZ32535031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2534c38cd7ccf8cbb9d6486243fe4fdf44dc54ae5fd71f10566e40f46dabbf6. 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/QZFZ32535032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afd87eacd843d76946e0e17a8feff053f15b83e909f63b7a365521932b88fe9. 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/QZFZ32535034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb610f78e39ff77e0cba4320efcfaf30fb0240e9290b59e4a67d713d93effc32a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:54:35Z), 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/QZFZ32535038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac2ea2bfa88c551f8edc1ce38692f25d76d74ef45f7e0e9db8245f0b6edf249. 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/QZFZ32535042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0c306ab9934667d3b46b8fda3cd9d55240e5077c8d3996c28d128e44e5affd. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZFZ32535043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f8d7f7ff87555d5ce8a2316c923fdc66b9092e9df545fc4160e3a56a39aa9c. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:36:49Z), 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/QZFZ32535045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a860a84c0e5e77fc235bb6d76c8defe150959337abb7adff07abc35e350017. 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/PLC062414505.