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 0xd63aaffdea6eb6515b5a6048860ac9c525a1a3364845089f0eaa6292cc48f3b4. 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/77b8cfe8-29da-4a46-a20b-eaeaf0306258.json and https://artists.proofprofile.net/proofs/artist/77b8cfe8-29da-4a46-a20b-eaeaf0306258.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gunjou Biyori -Ideal Days for Ultramarine-
Bokoku Joucho -Feelings for My Motherland-
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 0x69d241b69da2be0b5269c86d082d7dadb7f25f0616d4643de020cea461979320. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5yVemhOvhuQhXeO069WaPk.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/5yVemhOvhuQhXeO069WaPk.
Shuraba -The Rat's-Nest- - Adult Version
スーパースター (アルバムバージョン)
スーパースター - アルバムバージョン
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29a993b4d9925e39be284e484531a05abc4c8537d90a6365a89acc93694ee08. 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/08DO7S9X8bT1eAb4QrUkYS.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/08DO7S9X8bT1eAb4QrUkYS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75756a1f38b731882008cb978a28f348f8b468c2e7bd6c8880b6a7c449e6bc85. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1WAgpNFAUIQgHkYfvnmn7r.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/1WAgpNFAUIQgHkYfvnmn7r.
Uten Kekkou -Life Will Be Held Even If It Rains-
Zettai Zetsumei -Life May Be Monotonous But The Sun Shines-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e25cf09bf27045cf213d56773756262d48742cbd6dc24bb041d5d65085bb97e. 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/2iDu6h3gGAcsAn0eyBmXYK.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/2iDu6h3gGAcsAn0eyBmXYK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf775c1dcee3d77693d01139b84a23e93b06fa4e8fa84cc0ca6ac8ccfe5b8cd6e. 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/5Cea0bfeobd3iZKhAvZPJg.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/5Cea0bfeobd3iZKhAvZPJg.
{"copyright_id":"0x8caa487c77fc1a06ebf4353cb32a030c0b6f99b84d9c5af9c26e0f8745efbbd7","isrc":"JPTO01200844","name":"新しい文明開化 - Bon Voyageより","registered_at":"2026-06-29T01:16:00Z","spotify_id":"6dpyCBseJiXcK1v2UMCZKI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8caa487c77fc1a06ebf4353cb32a030c0b6f99b84d9c5af9c26e0f8745efbbd7. 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/6dpyCBseJiXcK1v2UMCZKI.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/6dpyCBseJiXcK1v2UMCZKI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75756a1f38b731882008cb978a28f348f8b468c2e7bd6c8880b6a7c449e6bc85. 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/1zSDa9eaaCmpf9NEtbXsA3.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/1zSDa9eaaCmpf9NEtbXsA3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cbc273ff2e4a0ae36ac1e5d68100c50e10323539b1d013fa25fc341112c2e4. 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/4N2khKHC2owtmEyMM6Ejrn.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/4N2khKHC2owtmEyMM6Ejrn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d241b69da2be0b5269c86d082d7dadb7f25f0616d4643de020cea461979320. 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/5A1wjt7pJ41cG4dAluTqGb.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/5A1wjt7pJ41cG4dAluTqGb.
{"copyright_id":"0xf13e0d5da4c7dec8b4b2e49a249a275cd1e24b5050d971580c073be2fc6f060a","isrc":"JPTO01101752","name":"閃光少女 - Spa & Treatmentより","registered_at":"2026-06-29T01:23:51Z","spotify_id":"1ANZMKlACFpsPC6slvSfkO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13e0d5da4c7dec8b4b2e49a249a275cd1e24b5050d971580c073be2fc6f060a. 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/1ANZMKlACFpsPC6slvSfkO.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/1ANZMKlACFpsPC6slvSfkO.
{"copyright_id":"0xfc6715f861677d220ab1b90a085acf0bfcf5d6bda3cd24cb0b1fadb4168ad6c3","isrc":"JPTO01101756","name":"群青日和 - Dynamite outより","registered_at":"2026-06-29T01:19:00Z","spotify_id":"0D2yxchjY78d74muVfBzUL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6715f861677d220ab1b90a085acf0bfcf5d6bda3cd24cb0b1fadb4168ad6c3. 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/0D2yxchjY78d74muVfBzUL.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/0D2yxchjY78d74muVfBzUL.
{"copyright_id":"0xc373a7789695fa3e223a0a668814e924d16fb911fdc6c56aa6e43e5cbe056562","isrc":"JPTO01200847","name":"青春の瞬き - Bon Voyageより","registered_at":"2026-06-29T01:16:00Z","spotify_id":"0QSDtPteLMBPNqKHV0KSNo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc373a7789695fa3e223a0a668814e924d16fb911fdc6c56aa6e43e5cbe056562. 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/0QSDtPteLMBPNqKHV0KSNo.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/0QSDtPteLMBPNqKHV0KSNo.
What a Wonderful World with Original Love?