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 0x71a6434b613dd77fdfc783d91ab380b39b3f7a29100c017cc02e7637c670d6b3. 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/4850b0e5-ecd7-4879-a38a-475695f145d4.json and https://artists.proofprofile.net/proofs/artist/4850b0e5-ecd7-4879-a38a-475695f145d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x72bf63cf6ebaff2a9153b6441e33a867484ac2d21fa57835a84c4caddfdb9707","isrc":"TCJPS2226915","name":"Daikokuten (feat. Youi)","registered_at":"2026-06-29T08:45:02Z","spotify_id":"03qjsSo5pvSYQ80wYBdHkg","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 0x72bf63cf6ebaff2a9153b6441e33a867484ac2d21fa57835a84c4caddfdb9707. 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/03qjsSo5pvSYQ80wYBdHkg.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/03qjsSo5pvSYQ80wYBdHkg.
何時かの夏、君は綺麗だった。 (feat. てんぱ)
One summer, you were beautiful. (feat. tempa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971f45c6930083c7c984090d9287eb093b105a4a38aa3104b9a6c66c63ad8729. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4rB43OnKfkKEjB2CHtOv1B.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/4rB43OnKfkKEjB2CHtOv1B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971f45c6930083c7c984090d9287eb093b105a4a38aa3104b9a6c66c63ad8729. 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/0y7xsJcMPWyAIbvCuVy8hB.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/0y7xsJcMPWyAIbvCuVy8hB.
音楽的同位体 可不(KAFU) COMPILATION ALBUM 喜色のアシンメトリー