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 0x4a63066ab866b6cf5458258d09a83ce5eaa3d7b6a20bf1d0ba36927108fa1358. Chain 2 (Bitcoin): anchored in block 953600 (2026-06-14T06:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e3f3866-f01d-40a7-9bc2-3524490eb0df.json and https://artists.proofprofile.net/proofs/artist/0e3f3866-f01d-40a7-9bc2-3524490eb0df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Why You Mad (feat. Emaculent, Anthony Gate) - Single
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 0x7d70d0089cc19ad05b99295482f71721129bcd7d75f6d756f91ae9518531daf3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USDY42155348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7068418c1b3164202d59390a002124f6bc44ec18515d5c960028b87cae81925b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USCGJ2211467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11052f4f5875cff59242a9a0b4c0871add043f14cc9ddb7f3b1ac0e66bb8eac. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USCGJ2242773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb031dabccf1ef48e86f1c5bfc34cdd33d9c97f1f70c0b08ccf57c3d6d747971. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:19:01Z), 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/USDY42298190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff6066e4ba952b4e4c53aaf5b5c30eff90a659429fb11edf7fa16465393b688. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM22239929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e2dbe85a2da12b7fd5ef61f097e981f383e5341413652564919bdf4d7c3798. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USL4Q2333595.