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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544f5c1228964eb6c75c4f50d26e4d9abdee0e88d4545676439f3925328d2d7c. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bfea1a1-6e37-4b5c-a233-8491dac4dca4.json and https://artists.proofprofile.net/proofs/artist/3bfea1a1-6e37-4b5c-a233-8491dac4dca4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hej dziewczynki! (Toca Bass Radio Remix)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b7328d81ec513a95a1f9cb962e0c3f918604515296770cd4daa847f51a3b71. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PLI368411090.
Czy Ty wiesz (Club Beat IN-OUT for DJs - Aranż)
Czy Ty wiesz (Ace Special Remix - Aranż)
Takie są kobiety (Version Electro - Aranż)
Odjazdowa muza (Master Bronx Remix - Aranż)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afa3946e7364c3cfe1fe571231368bbdfac860dd99dc2c71c55f05d5c2b1ba1. 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/PLI365291350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b53a5146be3da5f6bbb908049f6b1e89c52389487f165ea639885923e47d01. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/PLI365836090.
Czy Ty wiesz (Toca Bass Instrumental Radio Remix)
Chciałbym Ci powiedzieć (Love G Remix - Aranż)
Hej jest ok! (DJ Sequence Remix - Aranż)