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 0x18f8374332f87fc18aab6440af194e64b339c7d515432343ba5de80091b1ac0b. 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/86c5be3e-e0a2-4b98-b0ea-b5d01935dca8.json and https://artists.proofprofile.net/proofs/artist/86c5be3e-e0a2-4b98-b0ea-b5d01935dca8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
君不语 (广播剧《二哈和他的白猫师尊》第三季概念曲)
君不语 - 广播剧《二哈和他的白猫师尊》第三季概念曲
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 0x939098c2af840a7b7411f30a2a11731d7e3eb269ef6e56feb3d9aaedfa09b458. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:50:57Z), 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/TWDL72300838.
人间无恙 (广播剧《二哈和他的白猫师尊》第三季概念曲)
人间无恙 - 广播剧《二哈和他的白猫师尊》第三季概念曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a0c5eb5e497e44912c7991f5eae2a40d49f1e77fea6598f94ae1243c0ef202. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FR96X2443858.
黄昏后 (广播剧《末世小废物被大佬捡走后》主题曲)