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 0xe824c62f1ce95da5e5dea6231893b248e9ff9b64562fcaa9200b9d18871dc50c. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11cd494b-0101-42bd-a049-477d47aa7133.json and https://artists.proofprofile.net/proofs/artist/11cd494b-0101-42bd-a049-477d47aa7133.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 0xeef6dd0ba7bb9d7246ddab17c6d9662c6e2fd778841bdf75a8ead7dbc3279819. 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/HUA480901151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b099ee148344fed2c3e0d44193a9efb2abb81672f0cb32a2a734ea311c6f4a1. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/HUA480901327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e042a0a65661e54659c0ace5726f1e4f872ec8cb8c040ac42a72e311a163ab7. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:07:52Z), 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/HUA480901339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cb208394221c19c48338b237ec53cfde9b7a9cb72f3ed632a4cb9019637b99. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/HUA480902159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb29997e05d07f358aa59e5c3c8dedad04af4ca569d7a05b2bef0d4e78273213. 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/HUA480902256.
Your Body - Cheesecake Boys, Discoteca Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622d93578d61c38db566548b1ce9c199a7a17b267d22862d428dc0d0113040b3. 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/HUA480902280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dc2fb6b1c628b27b13026567d74267dcf2f3e58f7891473e1c9d03acb2a725. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:45:32Z), 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/HUA480902340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb29997e05d07f358aa59e5c3c8dedad04af4ca569d7a05b2bef0d4e78273213. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUA480902256.