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 0x00dec63124d61d1078b642524a0856e363c97dddc2ab2479538d8f0d5d63ce57. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1e4cda3-85dd-4b33-bded-40066e977579.json and https://artists.proofprofile.net/proofs/artist/e1e4cda3-85dd-4b33-bded-40066e977579.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xea644eac00283abed778334b9f294767e7f54fdc4025964da7e45a57e04f508a","isrc":"USSB29000042","name":"(Life Is A) Fantasy","registered_at":"2026-06-28T21:28:43Z","spotify_id":"1bqsOdKOKXOoAsohwNblE8","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 0xea644eac00283abed778334b9f294767e7f54fdc4025964da7e45a57e04f508a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1bqsOdKOKXOoAsohwNblE8.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/1bqsOdKOKXOoAsohwNblE8.
{"copyright_id":"0x6e4f3bdfebd4faac93768c730fd6f95d43d62e76a6a1f60406c5d68121fb6ce3","isrc":"USA560845828","name":"Buffalo Soldier","registered_at":"2026-06-29T03:48:50Z","spotify_id":"6NPjBfnkbXplzFPrNaqL3a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4f3bdfebd4faac93768c730fd6f95d43d62e76a6a1f60406c5d68121fb6ce3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6NPjBfnkbXplzFPrNaqL3a.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/6NPjBfnkbXplzFPrNaqL3a.
ヴァニラ・アイス・イズ・バック・ヒップ・ホップ・クラシックス
ユウ・ドロップド・ア・ボム・オン・ミー
インセイン・イン・ザ・ブレイン
アイス・アイス・ベイビー（ロック・ヒーロー・ミックス）
アイス・アイス・ベイビー（クラブ・クラッシャー・ミックス）
アイス・アイス・ベイビー（ニュー・ロマンチック・ミックス）
Ice Ice Baby (as heard in the movie Step Brothers) - Re-Recorded
Ice, Ice, Baby (Re-Recorded / Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1273c53510256ec452f277e2b8d174a524faf7de86d5c8bcb5bb5d95622845b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3axhghNvQMNk1nROodKWHl.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/3axhghNvQMNk1nROodKWHl.
Born On Halloween (feat. Insane Clown Posse)
Ice Ice Baby (Too Cold for Christmas Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74dd3a8ec714671902d6bc980f2d57d497c1ca5c989ca4625dd70ba68463a48d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6JTH7PBGbTkWorZw1lgW1S.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/6JTH7PBGbTkWorZw1lgW1S.
Music For Bachelor Parties (Re-Recorded)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74dd3a8ec714671902d6bc980f2d57d497c1ca5c989ca4625dd70ba68463a48d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7oT0FmCdnOR2dj4T1OsTf1.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/7oT0FmCdnOR2dj4T1OsTf1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa849bc052a5f30e0e0116b588043aa50062413b6a843bc97d903a87fea2467f1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/30INQkVuq8VngUzLeAKHdz.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/30INQkVuq8VngUzLeAKHdz.
{"copyright_id":"0xa9578e208dc7583ee221c22bee3d904ba4e5ffc3f5594b7f2181d6062e4d8472","isrc":"USA561418638","name":"Ice Ice Baby (Re-Recorded) [Remastered]","registered_at":"2026-06-17T21:44:49Z","spotify_id":"7b4bpO5SuuJURpNRxpdR2Q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9578e208dc7583ee221c22bee3d904ba4e5ffc3f5594b7f2181d6062e4d8472. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7b4bpO5SuuJURpNRxpdR2Q.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/7b4bpO5SuuJURpNRxpdR2Q.
{"copyright_id":"0xb49efc051965ee30f8034633a37218c8303c29612316d03e6573a8cad8d6472c","isrc":"USA561279784","name":"Ice Ice Baby (Re-Recorded) [Remastered]","registered_at":"2026-06-20T22:23:23Z","spotify_id":"2KK1SqHvzSBEC7omKRFpmb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49efc051965ee30f8034633a37218c8303c29612316d03e6573a8cad8d6472c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2KK1SqHvzSBEC7omKRFpmb.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/2KK1SqHvzSBEC7omKRFpmb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdd52abf4e466fdf499e5f29dc0052011bc8649d5fb383257d0c1e0ecb99597. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5PckFevoF3nl84jny60A8N.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/5PckFevoF3nl84jny60A8N.