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 0x34a6e0cbb316705425237bbaba5a942c2b279b109f65afbc0c48c8f5c9d2e239. 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/856e9b4e-b473-4533-8c37-3be53f9e4691.json and https://artists.proofprofile.net/proofs/artist/856e9b4e-b473-4533-8c37-3be53f9e4691.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
House Your Body (David Tort & Robbie Rivera Remix)
House Your Body - David Tort & Robbie Rivera Remix
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 0x74f30b8012dc8bae3b1021e0dc19e1a2dc0867d2ff7daa7b8ce82145db24cdab. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZTLA2363331.
Sing It Back (Cantame Spanish Version OR3X Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41baa00074cc2df0215c947164f1fe4745d3971f6c589e3906f5641242cb0c45. 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/GBKQU2390824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b60b14b947b56ebf54fb552b66daf80a533c4b3d07de6858ed47e3ae6845fc. 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/QZDA42457031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a7b5446351e67ad3e0e9333e46683a140dd3faa49bed7af0a137ce9faee97a. 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/GBLV62418735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d309e2a4c803b529fa8cc7c1be1b836554f6a1222d50e6e0792473e8b7fbd9a. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/GBKQU2529546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05b34eefa97ad62047422393b2ddda5bddf044466025de4e9944bd8f03a7492. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/GBKQU2535284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827d46ff50a75d966defddb13287a01f2e86050b7a95a2e4f97326b42253d61d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKQU2539172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ea7e05540dc2d3935eb44eb2a3a913bad0cd4ceefe02eeaa3559d040f48077. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKQU2536573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b8376b5178a662f315ba353c6597572c0da28b711e93f3931ab62c26445151. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GBKQU2536671.
Sing It Back - Cantame Spanish Version OR3X Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1180471a45211d3c1be9516b1cbf1240460a23268ccc92af95a0474a00e2f5a0. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USNRS2342616.
Cavernicolas - Dj Hermes, Mijangos Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d9faab2bda3da930404228926174e494b7412783e031c62a7763eb61cd0dda. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/CA5KR2286180.
Cavernicolas - Dj Hermes, Mijangos Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503ab0871de52e90180db40a09f1cfe971f6be53f30b16175ac1f980e36525d6. 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/CA5KR2286181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b78ab0973a31fe9f37593b6d771af05d11871e1ffedf869b79548927be2c38. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USNRS2241880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa34dd79f9c989b9b836d3dc75bf948a191129f3103d788222030ca2e72e641. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLZ8W2300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6850cb89efac3379276ea6023b062c5c5654957bb56a94e0b8237372c48578. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USNRS2443466.