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 0x75a8a7b128d11c7d9fb5dab81718352cbe9f7a0b1bd36ee6d72fa17398e35d4a. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e18f172f-1d9e-4ed8-9571-3a0413d59a76.json and https://artists.proofprofile.net/proofs/artist/e18f172f-1d9e-4ed8-9571-3a0413d59a76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
小滿足(電視劇《流淌的美好時光》插曲)
小滿足 (電視劇《流淌的美好時光》插曲)
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 0xbeb746990a04236401b891339be53e2988f7f3845021abdfd9b9ef1d4fac3c50. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FRX282248792.
第九十九滴眼淚(影視劇《玉海棠》主題曲)
金沙(網遊《新倩女幽魂》全新門派金沙鏡主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47998dfd0efb845d8f125f930a503d9eec0c2e4626c3738d64fa716a337d54b4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CNZ502200205.
穿過時間的盡頭(電視劇《三生有幸遇上你》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080fb91bccb6e964788b43f1f76e8cc975d24446fe62e1dc7b259a9ba27f2ef4. 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/TWCT52206973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bb7290773123cfa4f573b5325cfa8f9237cae5973c41f16d3017ef532245b7. 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/TWU711803330.