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 0x353bba52738223dd2f485f6150c9eae9473d9fb80c205189b22cfe1ecb1b6977. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bf940b1-3531-4183-ad79-d3bb24abd219.json and https://artists.proofprofile.net/proofs/artist/1bf940b1-3531-4183-ad79-d3bb24abd219.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Firework (Put Your Hands Up In The Air!)
Vosalo Pappa (Andapatra) [Hit Mania Estate 2017]
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 0x38b751513d106606eca7af4216b91ed8449aedbd04b5e9c0ff7523b053f89ab6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEZN82100566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b751513d106606eca7af4216b91ed8449aedbd04b5e9c0ff7523b053f89ab6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEZN82100566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362fcf60ecba95b833abc8e585b37fcbe65a1d272eaf7329cde4b8a9b0c6f1ee. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/ITJ872500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefd5f1646e03e1959e428e2536882029e17be17903cc28e1c3383b9607a16be. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ITJ872500717.
Winter Hits Dance 2020 - Deep, House, Tropical, Edm, Pop, Dance, Latin Music Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeaaa6e340c7e742e3e24a127883d5113b13bb47115e85266ffc9b7bf5839f6f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITH642014848.