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 0x6e198a9a309a893c8f3200ae5daba4131c0aeb4e360e62a9b230db5b62d8a333. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1fd565d-7a01-4474-818d-e19683c23cc9.json and https://artists.proofprofile.net/proofs/artist/b1fd565d-7a01-4474-818d-e19683c23cc9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Je sais pas comment faire avec les filles - 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 0xf0637febafcd07a16b8efa348492145d899908cbc8fbc94a20d16dd36c9f2ea2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CA0ZI1900003.
J'aimerais ben ça aimer ça (mais j'aime pas ça)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3d77d8de396e30461f3fafbe9173a5d1bf38322adeb715cd8abc28504d7c09. 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/CA0ZI2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf284321953d8babf7b38c623e6790314b23c8925f1b7cebc75deaba2c43f7b3e. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:56:08Z), 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/CA0ZI2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac70069ce9458e7b93eb6f1199c24868039d5bdd3a23c70ba80a1e8eb95508e. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/CA0ZI2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e679512c813d3f18a39d343fcabed0debaa487c186feb0769d31dcc7ba76a5b. 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/CA0ZI2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9078eed9a30ad3bbb442eaee5a4529b69d8cad2a9cef8783132c125c14cbeb2. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:40:46Z), 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/CA0ZI2400101.