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 0xe4b3b6e174ddebe415fd0e10901c55071e3828443bd9e9ec23e40f375fddaffc. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ad2d89c-14ad-4c4f-833c-b15c1bef6e0e.json and https://artists.proofprofile.net/proofs/artist/7ad2d89c-14ad-4c4f-833c-b15c1bef6e0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
HER ŞEYİ AFFETSEM DE HİÇBİR ŞEYİ UNUTMADIM
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 0x07e99bb9fd40b8f2f9607044458f42e78ba0470b7c5e0dbc04c588eb6d92408c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:51:45Z), 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/SE6SA2489971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b67c358151eccafe330321e11c6d758f9777394740e79a5017da2f355c70a1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE5BU2537831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7435ac238a33a2c9a05ddccbbc905f9233f161bfb723a6fabe3dfa6b362302. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:30:23Z), 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/SE6XW2517705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5265ffdb1e5df503f84cdfb54c27aa04e276e2f7f7a8cd3d8e6a1424ba6ed347. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE6I32529299.