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 0x13337440ffe99e1342acc7679074ea05e01685880e528f59dec061e6573e672d. 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/88effe21-666f-4339-94b5-e14b2134f13f.json and https://artists.proofprofile.net/proofs/artist/88effe21-666f-4339-94b5-e14b2134f13f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
卓別林的帽子 (網劇《我的世界寫了你》主題曲)
卓別林的帽子 (網路劇《我的世界寫了你》主題曲)
把你寫進我世界裡 (影視劇《我的世界寫了你》人物主題曲)
把你寫進我世界裡 - 影視劇《我的世界寫了你》人物主題曲
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 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 0x78ce22843fd827d630a1b90805d5e378bfafa6ba65b1a6c66d49c954b6fe6516. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/TWU712103638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa25d9b22c5d48d801c445bbe46760dc49e146cf69b4918d309486a207587d6c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DGA062490609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50439ee4240683f1e27792663e23514818fb894ce8cb52cf987715c515c66cac. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/HKD012416614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b54ad20f08f6d40de5fc61a44ade5c6be9a53c2e0f52a13df2767ffacf5827f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/HKD012417063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b1d3891e4de00d5fca67df3d5b4670f9ea146ed158b71edb1c3a341b35c61a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/HKD012469300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb7699bab8da72f78713b5bb8bdaf2c64316800a6e7dde25c025ec546a5f04e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/CN2DY2506847.
要做就做南波万 - 综艺《名侦探学院》第七季 主题曲
要做就做南波万 (综艺《名侦探学院》第七季 主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5592faded2b826addc1198b0d05344ba904ff678d5d3124be6ecc3bc7c80435. 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/FR10S2426617.
要做就做南波万 - 综艺《名侦探学院》第七季 主题曲 伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed2e3e970510594a76d5055750943e418a9c0fe3758507cd4f9b68991592845. 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/FR10S2426618.