1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6ecfb7cb042fe691a331322378012aa0de9c1f7778aafef468e6c6ea3407d3bc. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef24b4f4-2155-4279-9387-4ba8b932b034.json and https://artists.proofprofile.net/proofs/artist/ef24b4f4-2155-4279-9387-4ba8b932b034.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hold Yah Remix (feat. Gyptian, Nicki Minaj)
Ghetto Dreamin' (feat. Stephie Lecor, Plus Givens)
Chopper (feat. Billy Blue, Buk of Psychodrama, Trouble, Trae Tha Truth, Fam Lay & Glasses Malone)
{"copyright_id":"0xb3dab91ae4470c48285daac7df212f870579e0e54e93db3e8f9240b2e3fc3dc3","isrc":"USAT21405279","name":"Chopper (feat. Billy Blue, Buk of Psychodrama, Trouble, Trae Tha Truth, Fam Lay & Glasses Malone)","registered_at":"2026-06-06T23:51:20Z","spotify_id":"4IU33qQwEkfP7rxlPc73UA","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3dab91ae4470c48285daac7df212f870579e0e54e93db3e8f9240b2e3fc3dc3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4IU33qQwEkfP7rxlPc73UA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4IU33qQwEkfP7rxlPc73UA.
{"copyright_id":"0x7bb759fb432ba9986135e22470d098c1fd7eccf70ece703746d4849c7ae6eea9","isrc":"USAT21404376","name":"Pu$$y (feat. Billy Blue)","registered_at":"2026-06-22T08:39:34Z","spotify_id":"7Ltvlm4DxjwE8pPPe0WJrP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb759fb432ba9986135e22470d098c1fd7eccf70ece703746d4849c7ae6eea9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7Ltvlm4DxjwE8pPPe0WJrP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7Ltvlm4DxjwE8pPPe0WJrP.