1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x769cb47feb145093eb4b49a89f00e5cc9db10cd2d42e71080bb3a61951d1a2c8. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fe1610d-c9af-4c4a-9cc7-813fa2965667.json and https://artists.proofprofile.net/proofs/artist/8fe1610d-c9af-4c4a-9cc7-813fa2965667.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
八部眾曲 (PC端遊《新天龍八部》全門派主題曲)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388979462dc26fea767cf79cf93ce75ca65253e43cbbdee8cadd2bfb750258b4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2418957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa1d0af48ef9eb91ea292ed95da3b7fb9648faafe8e1c09b17d35caa289c838. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732120892.
百战成诗2023 (游戏《王者荣耀》113英雄群像献礼歌)
百战成诗2023 - 游戏《王者荣耀》113英雄群像献礼歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11f52604b461fce667907c0580cc217b263c181596870f5d58597d7032244b4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2382129.
百战成诗2023 - ——王者荣耀·113英雄群像献礼歌伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f8c1400293e80ffa89265d15999e53d774a724e1e8a3b5dba8b87abf2e69bc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2382130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ebff1def240bdb45bc24e2e9782d55c671a56d9efc354a50af56df81c3cc26. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282232260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c400c4cf88c8a9a30ff4ddbdf46df7454df046a909b74b297c5596be62cc8e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282232261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edcf3498f5448c53a4b4eca5cfb455fb96c4e9cba33d94217658a1579f80966. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282232266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3632553abe03ab164d5500030a6ae3ee972cc891085ce822f1cab55b2af399c3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282232268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f3929318a8efe924f3a21d1674412327e34eb0b78d591e0e744257baa2014e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNF181801173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec31cd41bc7809acaca07e3ef9fd13ba6aa508f76cfce1aff9da7e19e9e8621b. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNF181801175.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
致将行的你（将星游戏本开学季主题曲）
要是天天这样就好了 - 《只好背叛地球了 》动漫片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34fea8566d26cc1d84b610fdd5d17fdc69098404c0d0689186b008cea8756a5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732113660.
行星梦 - 《只好背叛地球了》动漫片头曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5203fa0325a7f52c88b97b664c6a11e1204f61cd801ff9c1fac6139d40cd277f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732113658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493e47b7c786eafbf749c53ad4a64fd4acf382104a78eeab7bb04ae24279067f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWD251950748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c44c07248a65064c43f3e77287463bc1edee14cc6412bc558804a6ff3d7a47. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731592457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69cd42c3797a3f549c4947fa7c7d4ffe75d8235092680df7a9dafccbcacde3f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202258581.
Final Gear - Prelude to War (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623144122ae352514a32fdc7df2dbb1f56f60d62091f4d6be9f256a5ec5dc4ee. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202162274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4de70b0662f4aea96a78bd4a96d151954e92b2ea3495c7d09ad71d95547817b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202162301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863b1628d088098ba4c8ce6e51f046d47692cd1caf14be885afe2de9c686a092. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202162304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e229ae757b86fbbcae14de4d0fb8c3dfe5b0b19152f0402ad5a087a1f17c4cc. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKE022341385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227583f53044088bc735c61cf247e93fd58bf7fab7f5df2a913c9d59e18619cd. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKE022341386.