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 0x151e917efec21a707f5a8beca8d6d7a0e569d947f80cb1518cfc728e99fd1ade. 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/54cbd189-b0bc-48b3-8fab-d0319460ba5d.json and https://artists.proofprofile.net/proofs/artist/54cbd189-b0bc-48b3-8fab-d0319460ba5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
「コードギアス 反逆のルルーシュ ロストストーリーズ 」 メモリアルコレクション
Code Geass Lelouch of the Rebellion Lost Stories: Memorial Collection
オルタンシア・サーガ サウンドトラック FINAL
龍が如く5 夢、叶えし者 オリジナルサウンドトラック (Vol.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 0x7fb5a37af203bf78441ecce2b0c1605152fadc3571a070d901cf387d48786262. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:28:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2UJDFrQocVUU7hgtvXsbP4.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/2UJDFrQocVUU7hgtvXsbP4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbe6f6944e40f9c6c68a0d58d9683193f89b0c8d345fd1c61ef753df64cdabb. 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/6cEM4PYa2vk9siNtZP6NPn.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/6cEM4PYa2vk9siNtZP6NPn.
{"copyright_id":"0xc4b7cbf30a1adc9a194aa899e85fd02730f286122edba06f6f9b4e8eaa41a185","isrc":"JPR501205967","name":"The song of friendship","registered_at":"2026-06-20T20:56:52Z","spotify_id":"7svmr3t3HZacBBJnjrWUJp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b7cbf30a1adc9a194aa899e85fd02730f286122edba06f6f9b4e8eaa41a185. 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/7svmr3t3HZacBBJnjrWUJp.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/7svmr3t3HZacBBJnjrWUJp.
龍が如く極 オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38a6b2c3344c66e82a2958565317916005d22feffc45d31271df3d49883da10. 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/34J1Afv2TSX4OKBuIrpccC.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/34J1Afv2TSX4OKBuIrpccC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb100c71ad50c00af749fdd0add492d037a3cc22c98339a16bac64b886f89b73d. 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/14Nd9Mcq30uQdn9lZ7OnnX.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/14Nd9Mcq30uQdn9lZ7OnnX.
{"copyright_id":"0x4ea91be9c84cf3f30f87530cbc27f1f564df6b077f6631aae1b0e73862e4a7cd","isrc":"JPR501614444","name":"Smack In the Forest","registered_at":"2026-06-24T10:47:27Z","spotify_id":"6gGMsSflToiLT7OE3lLVv9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea91be9c84cf3f30f87530cbc27f1f564df6b077f6631aae1b0e73862e4a7cd. 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/6gGMsSflToiLT7OE3lLVv9.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/6gGMsSflToiLT7OE3lLVv9.
龍が如く0 誓いの場所 オリジナルサウンドトラック (Side B)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995390415191b289ac9bb8b3e2b0daf78730769a8bf6c8078076c4a4e0058275. 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/4g2U6N4DHNgorrk722Ol0Q.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/4g2U6N4DHNgorrk722Ol0Q.
{"copyright_id":"0x422fad758079ce70f0a8d8ec207c7a2b2a117d5ba47b7e901b974aa3a899d856","isrc":"JPR501511913","name":"Red Radical Rage","registered_at":"2026-06-09T05:57:09Z","spotify_id":"4OS5ktaMHqvMAKUH0SGEIl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422fad758079ce70f0a8d8ec207c7a2b2a117d5ba47b7e901b974aa3a899d856. 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/4OS5ktaMHqvMAKUH0SGEIl.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/4OS5ktaMHqvMAKUH0SGEIl.
龍が如く0 誓いの場所 オリジナルサウンドトラック (Side A)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03562bdb18f5e19985423d3b315b4a0b77d337f7cfcd0d45dc87b0425f4bcb2b. 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/39cJ2E3NJmsXrVzkNxWAlW.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/39cJ2E3NJmsXrVzkNxWAlW.
{"copyright_id":"0xa724f5a3082e72e49948aabae62337b671ef3a1f65cd8754dca16b618a40b02b","isrc":"JPR501511713","name":"Trouble Shooting Star","registered_at":"2026-06-05T20:37:43Z","spotify_id":"5Sl3Dipj1Oz5nsCaHZtOS2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa724f5a3082e72e49948aabae62337b671ef3a1f65cd8754dca16b618a40b02b. 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/5Sl3Dipj1Oz5nsCaHZtOS2.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/5Sl3Dipj1Oz5nsCaHZtOS2.
{"copyright_id":"0xf42bda1423c7aa725afef0b5500ccdcdb0b06db08545571da48bfa567a7e0854","isrc":"JPR501511731","name":"Interplanetary Spark","registered_at":"2026-06-06T02:26:19Z","spotify_id":"6DOH2ccuJBh0ffaZ6h4Shu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42bda1423c7aa725afef0b5500ccdcdb0b06db08545571da48bfa567a7e0854. 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/6DOH2ccuJBh0ffaZ6h4Shu.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/6DOH2ccuJBh0ffaZ6h4Shu.
YAKUZA LIKE A DRAGON ORIGINAL SOUNDTRACK
YAKUZA 6: THE SONG OF LIFE ORIGINAL SOUNDTRACK
{"copyright_id":"0xe47d4ce0bdeaf68e48807e68fdfff2a43c562057ba3b4e594d7f66b5c5b0407b","isrc":"JPR502300196","name":"Town Bully","registered_at":"2026-06-08T11:28:48Z","spotify_id":"1GcCMDEmGVguYutty3UFvn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47d4ce0bdeaf68e48807e68fdfff2a43c562057ba3b4e594d7f66b5c5b0407b. 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/1GcCMDEmGVguYutty3UFvn.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/1GcCMDEmGVguYutty3UFvn.
{"copyright_id":"0xfddd65713f304b8d2696bd5260616cc4fd0075c432de5ff98700d9bdffcd0eac","isrc":"JPR502300219","name":"Lots of Lights","registered_at":"2026-06-08T11:27:21Z","spotify_id":"2E2c3kaEtyr37e3tJgyIBA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddd65713f304b8d2696bd5260616cc4fd0075c432de5ff98700d9bdffcd0eac. 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/2E2c3kaEtyr37e3tJgyIBA.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/2E2c3kaEtyr37e3tJgyIBA.
{"copyright_id":"0x6b6461c573d6803f91f0157cf4fdce794da06b71eceb7937f6a79ea0fdad192c","isrc":"JPR502300231","name":"The Man was Reborn","registered_at":"2026-06-25T18:09:44Z","spotify_id":"0TtICdD5P2KsaUpYebVON6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6461c573d6803f91f0157cf4fdce794da06b71eceb7937f6a79ea0fdad192c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0TtICdD5P2KsaUpYebVON6.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/0TtICdD5P2KsaUpYebVON6.
龍が如く5 夢、叶えし者 オリジナルサウンドトラック (Vol.1 Revised Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cffda23fae61d6b29cb9b1281af541a91b5b1f77e1b08700d5cf33fa94d210b. 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/5amxptGnUEoBKuLVhoQMpV.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/5amxptGnUEoBKuLVhoQMpV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f900b13c19e73b00189f1cedc69effbe9f284530f287263bf77bb664fb2965. 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/5nRDWAhFLLhyUY1OF49WQm.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/5nRDWAhFLLhyUY1OF49WQm.
龍が如く 維新! オリジナルサウンドトラック (Vol.2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04b4d18b581afb7be14e679756fd996d1d06f359f2d009034fe249bef24b553. 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/0BC1EUzmqvGk8S0oZRBFgg.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/0BC1EUzmqvGk8S0oZRBFgg.