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 0x145bf3719a61df4e2355891926f60ead763d9e7d0871e3692f0d8637c6ad107a. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4045bc2-d538-4b1f-8a12-8a6619cbe8da.json and https://artists.proofprofile.net/proofs/artist/d4045bc2-d538-4b1f-8a12-8a6619cbe8da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wicked Game (IDiot Electronic Radio Edit)
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 0xe41134e36c17b795e9ceb0f6af6c8030b69a71ce7290bf0e90c7a4638c3e1188. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBKQU2504073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b4e3c08d88613d81651d9624b0678193d4b2486fa904b84e08835c6e05892e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:32:54Z), 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/GBKQU2504075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d83cf6f9e31f026ab444a8c4a4c1c63bf3fa51c115c9f47c01a67e3c8f3deb0. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:55:29Z), 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/GBKQU2504076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a47dc743a1fd982000fd59a1600e3b898d74ae148a27ee48add7e8763ea557. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBKQU2545091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6491e6a2ccaa82e4a2c8b7c7c2f4eac352a1acba6a0357179d2c0a27600190. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:52:53Z), 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/GBKQU2545092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862128c9373a109d7174d90a05f7c7ba2e2142242f7a477d87e47a8c6631cffb. 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/GBKQU2555896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8446060cba82f4ce90a39e491b9d67bebb7eb676920655f36400a2376ca96fdc. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:30:19Z), 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/GBKQU2568655.