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 0x41baf7ea9dc9da7d1955304c0be41cc55c70b708c48c4912e585a5aa69b335f0. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d92aaacd-e238-4fd5-b2a1-437296c3150e.json and https://artists.proofprofile.net/proofs/artist/d92aaacd-e238-4fd5-b2a1-437296c3150e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Varm korv. När Loranga sökte arbete - del 2
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 0xe0b1bf735a528df9f584d0d3b8bbce2f732617c34afa0febf1b2ce94b542ef46. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/SE2YE1400147.
Varm korv. När Loranga sökte arbete - del 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc286096156904e9b9cfe77733be1d1e071c09d7007fa26bad806a1f6f8da32. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:18:40Z), 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/SE2YE1400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c7dd56f1f4c7b81f60ca6c78bd5719ef8ef9820c468fd5a70438d6194dbc2b. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/SE2YE1400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85758454d98c4dcdd9e9db1f568ce69f3b2671e67c01a086ede843570661cb93. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/SE2YE1400158.