1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bb1602a2aa71a252e8d7232d88e9b55ff01f0204d450941618ac2717ac99dd. 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/366404db-0ac0-4a93-ace0-2965062adf6f.json and https://artists.proofprofile.net/proofs/artist/366404db-0ac0-4a93-ace0-2965062adf6f.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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf942dad4b78d74b48d3fa70611ba1a96409ad1021b49fd8131d1efa7e9fba5. 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/US83Z1640585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55a17ea7fcc9bea03d7908e57cc8c52e875af7b2fe802805d8c3a2b3d2b42f5. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/US83Z1640586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b59cddb902c7114264d86163efb69af259fdbe67729fd5674fb44da7d44da0. 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/US83Z1640588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f4ba5616e24ffd6e33537c060c7cc9e60508b59cf14367f9bef8a1f59aa006. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/US83Z1644147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82684a9e63cbc876f4bea76e62ef9ddc453530deed0a853d216f33a33364d9c. 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/US83Z1644149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dab16a3bf27af90d3ca6daf436177850128cff3b38b79fe4a89211ebef2c661. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/US83Z1644146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d4b095d8b8d68d77bc9a5013bd76ba71460b9e1aa6d8eaf7c9e58dd29d7441. 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/US83Z1644148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67576644fe9a59a34d06ca143293ab6807b8509d23e7c46c2086d3c205cb8950. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCADT1843944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f64e0a6d206f6125550b1aa43763caa455ab54f771f2e0823693da49b64373f. 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/TCADT1843947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b217f1bead4b10c4f3b9d669f309692d48a3b9b213315d0996aca4c28bafb8f. 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/TCADT1843949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb7192e8b6c9c25cc31c6796a3de9d2689f2e7bcd3ff86d6b84dd6c6d0aa9bd. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/TCADT1843950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748f3134063d0bae1ca463b35c85909804bdf96ce59cdf36113df15aa74e12af. 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/TCADT1843955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6a39492f4cfb56a36ad1ea0c493a8915d6b04f9b0a8144307a34f010a0f28e. 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/TCAER2091148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378562ebdcf5636bbe327d34e339cc9a1c36a06fe8ed176f64ee7db141b9af87. 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/TCAER2091150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9acde40aba14308ae013369dedf11235ecbcc57248f2c9c021a073ea61edcdd. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/TCAER2091152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f60d07737bc5f5663046993f5bc13d0eb3ce70409b40944a32d1d5dae2baccd. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/TCAER2091154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812142308c628cb6ce1d713e420a36252ea82e0adb01906aa6707e1944798dc7. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/TCAER2091157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45fe62709c096d2ca4f8d3f252940a927e1f810813b14d8fe93409b26ffc097. 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/TCAER2091158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f0c40cac7b7a094f87d17c074ccac4b53363da69d8e8122063477d970d0759. 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/TCAER2091159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e057c8fb5316e18f067899c93399c051c2ae04024ed9eb47e280ea721850706. 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/TCAGI2215726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c690033b765428db6e1791f5e88fc953b04145ee45840ea4a4118cbd2c01120. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAGO2209373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c42a19561bec175854fdd06830b55e9f8b03b005e5c9ebe21b25e3de0051de. 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/TCAGO2209445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8229e59d0b9cbc2e13fc4a8ccbdda8ec420076b7ffbe223b8243a6adc3347ee1. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCAGO2209368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c690033b765428db6e1791f5e88fc953b04145ee45840ea4a4118cbd2c01120. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAGO2209373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cf70f9d2099ec4c14730099052adbe3598b93140a842a236c13115612d2269. 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/TCAGO2209375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602ada2fe7434fbe67fd41f82282868517749c969d54d9e242ffcde31a86c914. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/TCAGO2209379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7dd2e910a30192c113594753b06001d5cdf35f05cca61f1a36b3b0eb8a27c8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAGO2209380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7881fdf5e81b6655e60ae0d482307cc94b1cafd0e6059fe7109f2a853c810b31. 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/TCAGO2209386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc06ee3cd78d52928bf0310a3baecb894a93e275cde14d6e5b6733bfe171b14. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/TCAGO2209399.
Punishment (From “First Person Shooter”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952c5f36deb5bba0fce2ca3289864e00fa0ead972123c5c1cbb0f7466881b61c. 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/TCAHJ2326853.
Clutch (From "Terrorbytes Original Documentary Soundtrack")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726c115e7960ce33b264a4508ff108cfcce57247645a0d9ee154ead5a02239ef. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/GBWUL1951630.