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 0xa1ea89215116eeb7ed8744c93924e61b138aba0c97daeafdfc7a1856186950c0. 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/0320520b-798f-42e0-ae1d-af868fd7f94e.json and https://artists.proofprofile.net/proofs/artist/0320520b-798f-42e0-ae1d-af868fd7f94e.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 0xc0e23f51068ddab7bb06fafc92a89bdd1af789928483a9a52bf8520970be4d62. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:00:29Z), 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/KRA341518953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f44e18fcc097ff70a1d08572bedf241044b4dd878aa29a7fd33e7d730c98ba. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:30:05Z), 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/KRA341519097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5b1d54e8dee1d62d3ff0fbb752d57aea99c41ae4f1e52f95a989133f118c38. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRA341518859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fd5beae623afec0e2e43533aea22e3845a5be9f3e849341f7e4b822020fd64. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:08:35Z), 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/KRA341518867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb464a9aaf7e5f9d99321a7467c63abd4dd4b203508579a62cd987e4c14a520. 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/KRA341518886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acaf3a55230cb718c2f6323fd176e755e4054de90fc87da0805a998af2983ec. 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/KRA341518916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305270e31a1c3fa27f823ce2c09391e495bf6a6fe2857758b24761f34e76513b. 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/KRA341518920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de67b67be396ed10dd0591ab545fb76d58153eb5a0afee47844231df2535aec. 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/KRA341518834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946268499c270e2674e38f788e6cad9db90d4d5b4fc418324005610a4bc120c9. 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/KRA341758809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2f3063d7bff664e817aa36c5c23ab61e49ecdbafe43480cbd9a4fc9f76ab80. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:07:07Z), 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/KRA341758820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa744f0773592641ce447c67b2351e7840a89bdb9bb593cd341a1db3567827de7. 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/KRA341758822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41df51c7caef2869c84ddb3aa558e545d72a88eb971d0a22a9939dd31981673. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRA341758810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c97636751211673300c85c9fe0eb0c3cd0ec07037a9901b9323da1ca7e14f87. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/KRA341758832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b58e8ef1c077c7df44618d702dd22eda448f2ab1823821ca1cd3a5577e32f6. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:45:27Z), 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/KRA341758814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a64217694beeec0a4e1f793c653fef95f51ee6cb29aec772b411a1cc8b3fd54. 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/KRA341758815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a883bf737db52d233e7ee9dc13b5019f8fb84915c45fce723ce74c20eead78. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/KRA341563231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c3e09f6592076c5ca0bc4a9b9407e4bb68c42772ff5397340d027a0a703dea. 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/KRA341563240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41a32e1402d340a81c93c006b7d789a5f5bd03b243bf8b8c28bddd03c5bdd36. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/KRNAR1705238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb17cf497e3417f1beacb0f5caa82d5faa1b86f0e396e9ed6f14936bd29080a. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/TCAJR2503164.