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 0xafbccf2c9d04d32d812e380c9f4b8fd2d9a812d7b79d878b406d670b96fac25a. 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/46a8ca3d-7ce3-4273-8419-020561947387.json and https://artists.proofprofile.net/proofs/artist/46a8ca3d-7ce3-4273-8419-020561947387.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 0x09b229ad2c479405233f661f86f420757d9d3e37da5815ab5b9c29524cc9d401. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US3DF2418750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f082983874609f4fa6c9395089137ec820cb848816e5efccf9a7f51e595eb5. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBKPL2289439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5406f9b0fbdb5f756da6c51dc96de69174d1d9982c2a481535140570246e4e0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKPL2282852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96883d2fa2942b5b5a606ddbe1d69c271ca20d8132a13510eae1fef52e57ff38. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKPL2296346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5252eaa08600502139886fd538c1a38143b3f85fe7013e83ce921b5dd65a9c5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKPL2296345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa247cc05d19e2a3db8d54370ca75a9f40a5c3e404f94593215ae941a7e135a06. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKPL2296344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd84fb7cba0733597640bc0827d6c21b5769798200a3fa6467b2fe3cc8e0c6fd. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBKPL2284460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f082983874609f4fa6c9395089137ec820cb848816e5efccf9a7f51e595eb5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKPL2289439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd84fb7cba0733597640bc0827d6c21b5769798200a3fa6467b2fe3cc8e0c6fd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKPL2284460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5406f9b0fbdb5f756da6c51dc96de69174d1d9982c2a481535140570246e4e0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKPL2282852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd49fddd5556aaf0021a4d03f89f8932ed999596d22b6c0ce297922ea1a3c82f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKPL2176593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a6a95aa68665802290c4f561a6a8b2d40da31629d260e7bf7c85b103bd6596. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKPL2169212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1c1ec26b62eb7625b8d5a4cf6890bd1912d45c0e1ae37d82aad318cb6646da. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKPL2155296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572f37dea2d8ed333dc35e82ded55ae8cd6b77610af1ec63e802533d138ae496. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKPL2149135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6004ed697b19e971640ed7e777c148992500d606a1141d029755520810b50c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKPL2146136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d80fae17e8a014b17824ce7bc260ae4467ce84303849c750e00267837e46ee3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZ5AB2174481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e4384713eb5c69fe7fd0a5dd08ac7cb26170a8cf471aa95a4f96e994b7cb4c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZMHN2013817.
pretty girl probz - Nathan Mathura Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf530f4885898b2ff875c9f7d7b475615017695f277250c5e2c6eebb39cc3995b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMHK2021720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04df250ea83e9e395e897551202dac9d9142923ba5319bd052e8becb43ed2c5e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMHN2012657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5ad1fa6b2a7bd68f3065ad637d1799658f656b1559e4c0c7cce3bb013d42bd. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QZMHL2042031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04df250ea83e9e395e897551202dac9d9142923ba5319bd052e8becb43ed2c5e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMHN2012657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8b490def173df3dd5fd0e5e8a84b4d216540b14af33a8ecfcee75efd287051. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZMHL2055097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5ad1fa6b2a7bd68f3065ad637d1799658f656b1559e4c0c7cce3bb013d42bd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMHL2042031.