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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d60b413dd24e5a78a47a2e4be5132fe46300e8524c07c61af0925d806f1e215. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/728e9ba9-404a-4fce-a0c2-168bfd3e7d18.json and https://artists.proofprofile.net/proofs/artist/728e9ba9-404a-4fce-a0c2-168bfd3e7d18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
半城煙沙（合唱版）·新天龍八部懷舊服推廣曲
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47b4d18b435117bfc13ee6543ecac714b253fd641263c18a1af22c8e8a45ee8. 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/CNZ172000221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7a3fff8113620fa36c770fec0db06a59582355f305b05b77a466b837b480b8. 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/HKE571433403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d15775ad5d691f0c7582c3bb9832752520a01db5d3ba93d388cf671b2144541. 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/HKE571433411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aba0531c4dc9c3eb5198a3101a61ea9fc5314e161a4a59dcde10597fe71f328. 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/HKE571433412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057603abe1811ad11da884043924d54818cd6034422db2f988f89688a9084e65. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CNZ171600420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bbd58c14630395a14c58bbac8a6bc2b1cef9f02f62a2c7f9c75a2db9d3ae94. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CNZ171600421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6079add20c6ce8cc43e9c79d2db5b22a5221f973a6583fb1471dc74836a337fa. 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/CNZ171600427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a94ce17ccefbb743359aa39cab0cf8fe9bde2f1175dd9c8ce64880853eef93f. 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/CNZ171600426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d07048e1ef39b898bf0040eda3bd518a79c9ceef134ab18b1a27dc7c382aea. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CNZ171600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0280c045de82de223047a6b071d365c5790f4dcabf703f18e889a3971589b33. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CNA651400366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77dffb0bcecc58ba1a930b9076842702422da2a3449c48eec9bd18607e557b60. 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/CNA651400367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8171b249178b2edc403f7107f989105769b0b88891ff0e3b4fe7361081b2a93c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CNA651400369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426ea962584589d66bdfd1c48e2898ee459eaeebe52080da6dad7c2d84823dda. 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/CNA651400373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cd4f8164752f050fa8067e73f10ae3fff7fe82f2ae7dab278d66311785bb6a. 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/CNA651201162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2681626798c0386f7511fbc0d4031e05f5c77505b344d293e7db642e9b966988. 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/CNA651201170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442ce3eb935646eb1fe0badc3f767dbb353395daa9b7f4074650462800e593d4. 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/HKE571101001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fd39381b67cf46a80591bd7c4369d236df1fefe4d7884aa8a38002f3b526c5. 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/HKE571101002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1e420d1c739e6aa257a87e3c977032feabaa91fdd02c1725e6100d087bbb92. 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/HKE571101003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59242f04140ccb3dd02920f2954262b5ba553f0cc4aeb791d0ea1658bfbd6a6. 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/HKE571101004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe71cfe1a496b0a8bf6913c647319e2d44623c5dce170cbac58809e4563794cd. 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/HKE571101005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a135044750d5bd576c5969202928b9636175e491fa013b4697d14ccb7f851b. 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/HKE571101008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4aa9e2993d4e89e16541176d914af7119d4a35ad2d1aeb9717a7a9e5b45a84. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKE571101010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe130b98858e74e319342ef3a79c99ac2e16a9ac45ed564e4aca15a7780a5de3d. 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/HKE571111001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddd43086af59d1806c85b8232d7ab8d2c98c9463037d6ed7a7de9336723e5e3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKE571111002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e5f6311837e40a6c7da6822168a3d505ec79c39c2c0d31b8f5de688cc96ab4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKE571111004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d7db41adb52555acd94465d76b8255724790cdc3495c9b490ebf4eee475d51. 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/HKE571111007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0084aae2d76acc533f69352df789ad1747f28154f4ec5ce3850faa55ac94f959. 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/HKE571111008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faa46a15de5eeb14be768f6c4b1f71626af53ac4222f55f3d63ed90cddbf32b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWDK52405001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe03c972d84cf36abbb7e106f6cf47720c5e39ea2bfc3fd4e55f8b6aab76589. 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/CNZ882301241.
心有所向(《經典詠流傳·正青春》主題曲)
曼陀山庄(天龙八部端游怀旧服主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b218ecfe059052854c0e2d24d8338fe7de958cd2fb3887bd00874f13f64550. 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/CNZ172200139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9567832fd87e7f2c6cafe81b4232c99e4b274ac899ae710535d6322e6439eff4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CNZ172000090.
全世界最好的你 (電視劇《全世界最好的你》同名主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d4776d8d4f5fb48a38efab01fc9403574172d366f2ed40c017f267520c5fb6. 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/CNZ171900241.
飛馳于你 (QQ飛車手游敦煌版本主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faa46a15de5eeb14be768f6c4b1f71626af53ac4222f55f3d63ed90cddbf32b. 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/TWDK52405001.