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 0x3a6b8053568f64510ce10adf7059cedb4721694655bfd088f1d6ad755830b297. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bcdb564-7324-492a-a66c-1e6690aaa88c.json and https://artists.proofprofile.net/proofs/artist/6bcdb564-7324-492a-a66c-1e6690aaa88c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xfae788c7e4f24ef95618753b732e1685437f60a927a2358392cf59fbe467c465. 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/MYLO32210061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6416c3c44e9abf4cd5a8077fde8414e7c4a41b66bd4b20512e0d317024380690. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/MYTM12010001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff67460ba3c86300ce7e33f736a26d8734d37ccf6f74b323d80a97dd4d73e86a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/MYTM12010007.
给三好 - 缅怀星云大师纪念特辑人间音缘歌曲
给三好 - 缅怀星云大师纪念特辑人间音缘歌曲, 抒情版
希望 (缅怀星云大师纪念特辑人间音缘歌曲)
希望 - 缅怀星云大师纪念特辑人间音缘歌曲
不忘初心 (缅怀星云大师纪念特辑人间音缘歌曲)
不忘初心 - 缅怀星云大师纪念特辑人间音缘歌曲
残缺也是美 (缅怀星云大师纪念特辑人间音缘歌曲)
残缺也是美 - 缅怀星云大师纪念特辑人间音缘歌曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8f498ab9b41f13f8e84375176475d9b9781e67219a469e83865a97372ad971. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CNZ331604319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f677cf59c83bad309e3731a85b0ccf444786dec71cf734d771d7472e0bb713d. 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/CNZ331604318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf370ef1abe94f3b790cfb4b8562730a6c64a667252dce8b0c527d48fa537b56d. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/CNZ331604317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288260f0c5d18e2dce9f018ffbcccf321ba0c367c353c3176e706253e8eb2609. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CNZ331604316.
新年喜眉梢, 福星高照乐开怀, 醒狮来拜年
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86033100eff2572b92f9261fdb8f624e8250b84fbf8a87288a7a3502b425abea. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CNZ331604314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ca9eb7165a578b149a876f87d490ec19bcb243b8d870ac8793c988ccdeee06. 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/CNZ331604312.
贺新年, 财神的照料, 大家恭喜, 贺新年
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12db895f46411b01f9ac1a869f49b25daf5801931d5c518fb7f6699ed3a85261. 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/MYPM12200056.