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 0x730dc901df49e7fe5f992b41fba32b391b3e9471dfd9534ee799ec84407fb7f1. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8863d2a3-3149-49eb-bd18-530adde2498d.json and https://artists.proofprofile.net/proofs/artist/8863d2a3-3149-49eb-bd18-530adde2498d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
原来时光都记得 (网剧《原来时光都记得》同名主题曲)
原来时光都记得 - 网剧《原来时光都记得》同名主题曲
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36d1ca74cc1265748ee1e17e53a32e35f0efa3ab90597db27610615d0a85ea2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR10S2173803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afce798eb828cb2ab95bc01bce02d3b51c628f616984d686cbe81b294ddb517. 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/HKG731543642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1dda6ab552d168a8fb16019c2c954581a6ebcedfa70af8d74d14d7d9c88c5f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CNZ632500239.
有你的青春 - 网剧《致我们甜甜的小美满》片尾曲
《致我们甜甜的小美满》 网剧影视原声带
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09520c626dae76ed38a881c8ce0d456060929b80e0ca1b3ba2e2a1436dc901c. 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/FRX872028241.
怕光的人 - 网剧《致我们甜甜的小美满》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab2d9a0b93f03fc46d31da20be58c0e8dd2d45301a4db306756033d4d972928. 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/FRX872028242.
歌曲零三 - 网剧《致我们甜甜的小美满》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfec7b2631f61f11860c7d877183f7dc4bc75d1880f219ced4a8eb02de6c7c0. 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/FRX872028247.