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 0x74bba119906e346e6b07c1c5624b0e34f61dfc9a9c5308b01215e6e296132b14. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf31ef8b-ec28-491f-addd-472f734b0245.json and https://artists.proofprofile.net/proofs/artist/cf31ef8b-ec28-491f-addd-472f734b0245.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x98a75e95cadaea4316f8333f618adcf20a360d1f109f4cf7fe5897bc75015121. 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/56C5WHCiZ14T8ez05bG6fh.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/56C5WHCiZ14T8ez05bG6fh.
계약우정 (Original Television Soundtrack) Pt. 5
Kairos (Original Television Soundtrack, Pt. 9)
Where Are you (From "Kairos" Original Television Soundtrack, Pt. 9)
Where Are you (From "Kairos" Original Television Soundtrack, Pt. 9) - Instrumental
Fav Boyz (feat. Thutmose) - Steve Aoki's Gold Star Remix
Fav Boyz (Steve Aoki's Gold Star Remix) - Instrumental
썸툰 2021' OST - PART.1 어떻게 할까? SOMETOON 2021' OST - PART.1 Something
INTRO : Miserere Mei Deus (We Fall Down)
Light on Me (Original Television Soundtrack) Pt. 1
{"copyright_id":"0x80546b7bef3da67114e1c2447d98169f7e4238849bfef185f37fe59f2ad710f0","isrc":"KRA382160908","name":"Black and Blue (Complete ver.)","registered_at":"2026-06-29T07:42:19Z","spotify_id":"5TLGDiSP7rFlXkn01ZMLrn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80546b7bef3da67114e1c2447d98169f7e4238849bfef185f37fe59f2ad710f0. 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/5TLGDiSP7rFlXkn01ZMLrn.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/5TLGDiSP7rFlXkn01ZMLrn.
Tracer (Original Television Soundtrack) Pt. 1
{"copyright_id":"0xd59ebe505db6bb0ba33f1f9ac5d048543eb48b38865453a4122596de7a267acb","isrc":"KRB472400765","name":"Supernatural - Kor Version","registered_at":"2026-06-29T07:40:53Z","spotify_id":"4LoYCCiTWmGPntNSQTLxiW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59ebe505db6bb0ba33f1f9ac5d048543eb48b38865453a4122596de7a267acb. 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/4LoYCCiTWmGPntNSQTLxiW.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/4LoYCCiTWmGPntNSQTLxiW.
{"copyright_id":"0x56f6815891e06ef2e2d0adfcec253f680c69dbdd8885b88bf360831798b8a715","isrc":"KSA002402798","name":"Intro : Recuerda, recuerda","registered_at":"2026-06-29T07:40:27Z","spotify_id":"2DN1RwQGjvULeoxvS9wx6k","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f6815891e06ef2e2d0adfcec253f680c69dbdd8885b88bf360831798b8a715. 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/2DN1RwQGjvULeoxvS9wx6k.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/2DN1RwQGjvULeoxvS9wx6k.