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 0x12d4b6f1767fbb69c6fa67d94091987eb8c0ad0d9f0d70e43f28a1ef5af48452. 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/2ec0bc98-ab69-4a0b-921c-6acbbbc590eb.json and https://artists.proofprofile.net/proofs/artist/2ec0bc98-ab69-4a0b-921c-6acbbbc590eb.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 0xdd4452dfe5d7ec6b055078f3eef65293d541b25cebf53830045b451a38dca1fe. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:01:42Z), 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/USLD91712939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a7b343aaef46109b37d66ace75357ede25170108a0732246e41c67a956ddac. 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/USLD91712940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb19ef4ede3829b102a94ec327a7d044813acbcd1d41e154e2cced47ac5e5002. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:23:56Z), 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/USLD91712942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e884663e1ed40934f16034e4c544106fb9648275427c4f44b95a4be6ebb2c43. 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/USLD91712943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8c9049bbe7a9b275b4301a2afee6ef3f8a5371ffc0bab33afc8f5ad58ec63b. 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/USLD91712944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1123d1b7071086cfc663154ae6fb75138b311ddcf730172dc5d0ccdffc10ace5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUYG1343674.
Real Trappas (feat. Hoodrich Pablo Juan & Wicced)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7b21c33c111423d028b03b72e9e73c1e1e4afaf4cbc1cbaf8fd92d5b71a8ea. 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/USUYG1343676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24e460f64ae72c48cd9f4ef25a0169985cea2d0c66ba8477b7f26a0a944c06f. 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/USUYG1343677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde13a37f5d0a5fb560a2d5f451d95790f70be28739f04640c45c1034aae6ba67. 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/USUYG1343678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa2c4703801cdb199559f4f10a2e15a3862b43858347c74d14f3d58ef61ac49. 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/USUYG1343679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe351d1b8671ed1c087955138aa5bff8b3ce0169b726ebbf980a2147d8858b5f6. 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/USUYG1343680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ac3d2ee2565c17e0465b9f2836f168d8b068d2acd44be6dad08b784c38c14b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUYG1343681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ee81f03d7e6b4b1bcb3490863218dd6509fb2a019b4104ca0c2d7e4c0616e0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUYG1343682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb459cf9aa0e9a7a91e67cd620ba6b1df2038b1847066c6762ad0c55886f1e62a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUYG1343683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd017cc9e86275a02e67bba444e2d6f55761c503e4d71dff600a888b3665f307a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUYG1343700.
Forever (feat. Tee Grizzley & Lil Yachty)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b883057d34dfc4c2793fbc9fa3e1ad427ab659e4670790ab9ffa6bf612879b3. 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/USUYG1343705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb459cf9aa0e9a7a91e67cd620ba6b1df2038b1847066c6762ad0c55886f1e62a. 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/USUYG1343683.
Fish Scale (with Trouble) (feat. Tory Lanez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3feae881e5c31ee071fef518fa7d6a306d842cd069569559bbc008748780fa70. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUS12100351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1458d8938e96e4166df4bfabe578e3a88285d47654c227cdd6cb9d554aac1e. 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/USLD91727507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ecb150ee5d33b237f848e6866320a5aa1a7d7123d89ee6b97a1249b79f8e1e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USCGJ2505545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff47da74efd79af846fc27178aa94ae46684531232894d4d3024dfa083773bcd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USLD91736618.
Beast Mode (feat. Justin Gilbert & Jyrin Cox)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178faa9b05a8e809d95affb5d21e4ae6c294b5ca3db5fa936c569a174f928a6a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:21:19Z), 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/USLD91736619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4dbd84553fbb127c2243e78e7a1d423fe8be4d8e38d553364c88eafbe50b45. 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/USLD91736620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16223c799ac753eacf3d977dcf4713c262d3d284d4ea1563024e6e9caa088dd1. 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/USLD91726305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ac86f765c6fd8565559d279ff2cad0ce13bc0e2684c1465f765d71a5ed4f04. 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/USLD91717015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4ac778b8a0905e87e6b689d289d7f2170f61dade16e9d31e61132c824a01d2. 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/USLD91710947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78821ab95bbfd2093218b91a806800e5b5f1e7ca3966eae34abc4e51eb4258c1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US59X0900348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c0d84b0d3d7877d3be84b803905970881e96e8db0e82eaf8dedcc5730268b7. 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/US59X0900230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd129de726cda19e0241e5d882dec1abd6debe29fd526e0e92ff497baf7ff0b9c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US59X0900229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d5a3bf76762ea49f3ccb533fc2daa975a4b66e6de32bdfeb0578859a8520a7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US59X0900228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4697a5f9e99e5c46a4502d9a65065a8b1baac052698462724fae10e292391c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US59X0900335.