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 0xd7176005bbf991091febb06c66fc8ecece0b75b694ea1030c7306356b06589e6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96b31336-32dd-48a4-bfd6-28825a195bf2.json and https://artists.proofprofile.net/proofs/artist/96b31336-32dd-48a4-bfd6-28825a195bf2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
桃花源 (大型端遊《桃花源記2》遊戲主題曲)
练习当朋友 (电视剧《山月不知心底事》片头曲)
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 0x330f09296e33e2a89d8721dfceadd07c751eca1398cbeb1c4a2fbdadf939d3e4. 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/FR59R2090068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34e0f0e6be9f45ea01e9db02f25ac9f7599083f12a4a1ebdf6cad046ef7c40e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR59R2090062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4a5af44543472f395876e0773e6d46148650da2251495d4c1835090850b21f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR59R2090063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7a0292f6571dedbd017a51ca4a6f5afe61e4328816d6fa36a41dd91e6651e8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR59R2090067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330f09296e33e2a89d8721dfceadd07c751eca1398cbeb1c4a2fbdadf939d3e4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR59R2090068.
不過是, 再見 (電視劇《誰都知道我愛你》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4345c8a3fa23980b67c2de046c5ebbaabcf8432f4aa43137a4e4825fd42c0468. 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/HKG732152830.
不过是，再见 (《谁都知道我爱你》电视剧主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b97d2cd0fd1c10b338d0bd11ea1cdba0622e0b5aa288acd7162e50e1b6a695b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TWU712205496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb021fa33bab911375f524f3e9ad362b0399b768a41f27fb14f77f6d25f83f4e4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKG732276420.
練習當朋友 (電視劇《山月不知心底事》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dac7c7dce2b92608f9c8a9b2185f3e969a6db797f93e7f12805ac1c6a187cfe. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CNE221900516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e09320bdff3427fbdfd67683394a2eda59836f196d778f52482f3afbf5f4eb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CNE221900525.
花儿与少年 - 《花儿与少年 第六季》综艺同名主题曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ddb239fdc94fea30ddd58c27aff7f38ceded3da3f840fd957d681e0057dc34. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QNSM12401161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f77e5cf1ba025f2783b088e3445c6caff2f291e32c43cee8b5af083a65f1fe. 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/QNSM12402382.
我要你的爱 - 《他其实没有那么爱你》电视剧宣传曲
《他其实没有那么爱你》电视剧原声带
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d5781f9d4ca39f3ce4c22015c469cac40881bdf9a2464b060e1f062c7bbfc8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FRX762067601.
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