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 0x8af893d01447a51c685dcbe9b880c216627f2109e56657ad3fb1870af3323a9b. 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/ee48bbd6-942c-45f1-93c5-79b5b9a2b161.json and https://artists.proofprofile.net/proofs/artist/ee48bbd6-942c-45f1-93c5-79b5b9a2b161.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Resident Evil 2 Save Room - From Resident Evil 2
Divine Decree - From Fire Emblem Awakening
Ludwig, the Holy Blade - From Bloodborne
Midna's Lament - From The Legend of Zelda: Twilight Princess
Mystic Cave Zone - From Sonic The Hedgehog 2
Zero Two (From Kirby 64: The Crystal Shards)
Police Station Theme (From Resident Evil 2)
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 0xaa2263022199950fc9060d605096238745e2f7f3d35ffac1f25ae88a17b6a24c. 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/2WSakWP7yLHUilZnNoRMPb.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/2WSakWP7yLHUilZnNoRMPb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9678690dca5604f06060d87119610ab1e07357029247491bb1c378ba209d7ff4. 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/0jR2iyPPa5cjRlVxbE8ype.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/0jR2iyPPa5cjRlVxbE8ype.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b8593682a53252ce2dc18592befe9966b10474989bff28a439b3c2a5a7ab6b. 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/54i2oOqNXcaQyQ3W0iTa8c.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/54i2oOqNXcaQyQ3W0iTa8c.
{"copyright_id":"0x174be982d2a20992993cab08e7c3b81e5bb6bd9347e595fd31caf3f8ea8b3a2b","isrc":"QZK6G2039880","name":"Judgement - Yakuza 0","registered_at":"2026-06-28T19:26:15Z","spotify_id":"43eSGemRvFhCNZlfpvuk5p","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174be982d2a20992993cab08e7c3b81e5bb6bd9347e595fd31caf3f8ea8b3a2b. 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/43eSGemRvFhCNZlfpvuk5p.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/43eSGemRvFhCNZlfpvuk5p.
All I Want for Christmas Is You (Metal Version)
All I Want for Christmas Is You - Metal Version
Best Shit of my Life (Metal Comments #1)
Best Shit of my Life - Metal Comments #1
Let You Down (From Cyberpunk: Edgerunners)
Let You Down - From Cyberpunk: Edgerunners
I Really Want to Stay at Your House (Metal Version)
I Really Want to Stay at Your House - Metal Version
Boom, Boom, Boom, Boom!! (Metal Version)
Boom, Boom, Boom, Boom!! - Metal Version
Seishun Complex (青春コンプレックス) [Metal Version]
Seishun Complex (青春コンプレックス) - Metal Version
Rockin' Around the Christmas Tree (Metal Cover)
Rockin' Around the Christmas Tree - Metal Cover
Midnight Desire (from Pirate Yakuza in Hawaii)
Midnight Desire - from Pirate Yakuza in Hawaii
Lumière (from Clair Obscur: Expedition 33)
Lumière - from Clair Obscur: Expedition 33
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f65245c0d754299383334e68d880c620b3fe60de5949f1a755620301ce73b9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ZIXRv6I55iu7p5DAgXAvM.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/4ZIXRv6I55iu7p5DAgXAvM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511c64b878720daade05a3b6b82247412c755c6514e6d57da906e1f5c93daa60. 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/3Q0vjWe3iLPajfn2Dv4vSC.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/3Q0vjWe3iLPajfn2Dv4vSC.