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 0x4afb7af07a6a63f84929e0c9aa2d0f4ad489aa29d089ab2c22c1d081e1b67cfe. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d91a7265-cb30-49d4-b4a2-e5d3faa4da6f.json and https://artists.proofprofile.net/proofs/artist/d91a7265-cb30-49d4-b4a2-e5d3faa4da6f.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 0xf39aec2b910c16c742846e67be760ad05ebb7550797043b577d77f070ec2149a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FI4RD0600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2fcc7c450c99f20eae1f9ebca474355242a93ad5411d48332f252e21bf7516. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:49:09Z), 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/FI4RD0700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39aec2b910c16c742846e67be760ad05ebb7550797043b577d77f070ec2149a. 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/FI4RD0600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8f99de88b60a789e83c1c20fd3ade54395c5d93183c679f6452011806d599f. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/FIWMA1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7a5d9d04d95f6d38a14ffa2fb2c7b04527d81c968b05b444685c3a1fdfcf5d. 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/FIWMA1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf0fd4f10f222454e90b0fb351e9ad625f2e87b28c8244aa62c5538b527eb33. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:18:49Z), 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/FIWMA1800031.
Miljoona kertaa (feat. Stig Dogg, Stepa, Solonen & Super Janne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb655e39e0062e305e9a814e54ec650152b745dee0a847bf3dccba50341af18. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FIMRR1800290.