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 0x551127e96918ec11e1fe66a5bc8798365f939e28b7fa93fe3a8aa613be2b2471. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/360080e4-e1b3-4d9d-9db6-4ad5e0d942a3.json and https://artists.proofprofile.net/proofs/artist/360080e4-e1b3-4d9d-9db6-4ad5e0d942a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
无限的奇迹 (《我是特优声》综艺主题曲)
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 0x32310d9a5bd79c8214c5536df4f39a3b882a70ac818b968d896bd9e108a8261c. 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/DGA0L2457478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f80c5c6842081dee23339af04a584d989e80184cca4622b7c393a63e1727117. 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/CNZ842400452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158bb8a5ecdef0e9ab2ae08caa4741b7ecc55b3ca5f69e125a169eda5a42b46c. 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/CNZ842400450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e424456ad5fc26a34f25d73836c0b27942c075f85139d7566a4c5211d9c14b. 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/ESA012418527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddfb8ebd48092fb3819c6e99d15e79f4119f780060185af1ca3c0185b6a5abe. 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/ESA012418528.
梦想家日记 (楚肖逸ver., 广播剧《影帝他妹三岁半》第二季主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84a82f2c727908db9db69fb9b469cc9f3d3f7e25d2e4cafab15d93c1f64f873. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:50:40Z), 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/HKG731681859.
兄妹和平条约 (广播剧《影帝他妹三岁半》主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0170cfffc8c7d3879f8938f220b9466ca04878f61a91a89ff3d7c80494fd22. 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/HKG732341631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc518a7fd4936cf05f58962384b763d9670e35844729128ad548ab0b6ca4168c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/HKG732333055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08774c3e4e44123b4c73a0dd117f3f28235f1febf7ce90a7d022ebd04dbab28e. 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/HKG732327123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbecff2fbcf695595f7992ccd569a3ce07608d4d9d28c7a3f38cf2e9cde5f7d. 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/DGA062236980.
如果有一天九宫格和全键盘吵起来了 (下午三点系列)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b612b0c3d634635a4ba1d9ac64f1c3e9e1268b6196f32241bbacaa615ec9555. 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/DGA062204001.
肆骨 (广播剧《针锋对决》第二季主题曲主役版)
肆骨 - 广播剧《针锋对决》第二季主题曲主役版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa64b522448a47ff8cca8348b3ed99f162128ebff45837d80dae2896b67d24b. 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/FR2X42389508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec5f411cb79d6b47243ae6700a2fb83129e2cf682ed298baef01471d5de954e. 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/DGA062204000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f00ae3b925abd94c9e3c652c3e8ed205c8532f0714cae1919b16698443be197. 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/FRX202246303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbfa0ec6d0394cc286aacfd2afcfb4bc8c9494b50cdd964e6720c82d637fe6c. 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/FR10S2311355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe025f84662a6ec8733b7658ec6eeb7e7953477ea87e86e7abdfb20e334eadb1c. 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/HKG732428041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d67dcda3214bdbaa4e04975a1f49bc551d09c0a4db108e786f29f3633b1ec9e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/HKG732491861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7dbae1abfa1d72d40483e93d2f21c2848416782f093f6767c2656f66c14c11. 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/HKG732499064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cbd03dd9f998dca24eee2ed9a5f71655ee585c5b8dc2f2d71896d5cdffc82d. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/HKG732481545.