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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f895216dc4fc9c95f6498af73c6d4e9c528d3ecabf17fc34acce9611c210fa4. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e17ae0d5-7d47-49ce-9b57-a04208036c49.json and https://artists.proofprofile.net/proofs/artist/e17ae0d5-7d47-49ce-9b57-a04208036c49.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a5b10f73a002540811dddfb5582b770a382d8ea4bb9565de43596fe4b1f9a9. 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/TCAGG2264950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd130ccfb208f915953c63f2d26ffdfd20f2288f5aa3fb307da037c2eb42645. 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/TCAGG2289524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9180f9bcb98aa2aa9ee67beeff0860bda287d5c328b742e147beea4571316d65. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAGH2224152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654f448ff81ba16b7211fbc753609b0a14bf5fb5f95de05b2330796d42479b70. 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/TCAGI2293205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1042bf7a9a9f37926cb3864329cb36bff364f6843e3fcfb576f394d6e7893b1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:09:42Z), 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/TCAGN2270932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e90ef20c785aae6ea3c1d6e6428bfd1eff27fb5bbcd7254b08fe401ee9538ef. 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/TCAGN2275712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc251ce361e338be542592ab068240603dbc86e41e0a986ad847b26446f217d. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCAGP2281369.
Kunjungale Snehichavan (feat. Vineeth Sreenivasan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33eb1e2d622d72b20de580b0ead346492e3c8a005c73206ca16bbc70cd08b552. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:00:11Z), 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/TCAGU2320544.
Aar Aar Chirakulla Saraphukal (feat. K G Markose)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3edda59e25e396dee1282c58a048dab23c2f179e288a8613b645f4894780d7e. 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/TCAHB2377141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9264d0bc14b9f7ce7a0cc83db4e77679a99f15ff36504ac81c2ed8cf3caff3e4. 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/TCAHD2304471.