1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9a7c232a7d7153181eb8405bfdff02a274a10287034c13c8b7bdc68e7862bf21. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ce3566c-e05e-45f7-a69c-a5bebad5e702.json and https://artists.proofprofile.net/proofs/artist/7ce3566c-e05e-45f7-a69c-a5bebad5e702.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
二十世纪中华歌坛名人百集珍藏版—邓玉华 单秀荣 柳石明
愿亲人早日养好伤 - 芭蕾舞剧《沂蒙颂》选曲
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 → block OTSBitcoinBlock must exist at that height 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 0x4f8010c90ec07f953cd8be33ca5c3598401f4478dffa99219007e6f7b351fbad. 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/ESA012360981.
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全球华人歌唱家系列·单秀荣—雁南飞·优秀民歌＆创作歌曲（三）
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在这里留下我美丽的梦(电影《孔雀公主》插曲)
雁南飞（电影《归心似箭》插曲） - 电影《归心似箭》插曲
愿亲人早日养好伤（舞剧《沂蒙颂》选曲） - 舞剧《沂蒙颂》选曲