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 0xb376fa2dc669be0ef02d6b827784a525e276075569adbab03e301e285b4ea593. 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/dc413c0d-273e-4372-8d07-f64a7c044b0c.json and https://artists.proofprofile.net/proofs/artist/dc413c0d-273e-4372-8d07-f64a7c044b0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
千言万语 - A Thousand Words - Qian Yan Wan Yu
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 0x898bb17ab001d25ab3a9b456ca9a2f1ab26d07313bf69516134cd546456e9b8e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCADO1849279.
你怎么说 - What Will You Say Now? - Ni Zen Me Shuo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9d83f6eb4ed8d28db07d77a500bce9b0a841ec6a46892ad590e781115f1cfe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADO1849280.
恰似你的温柔 - Just Like Your Tenderness - Qia Si Ni De Wen Rou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312c13ec3849abf29b072f7e85996235e5a64196fbded4c632a9840986884962. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCADO1849287.
小城故事 - A Little Town's Story - Xiao Cheng Gui Shi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d5fafdfbe0c1f46ddb214af507fb4194e8aba5605aac03dceebfca359c1aa3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCADO1853996.
月亮代表我的心 - The Moon Represents My Heart - Yue Liang Dai Biao Wo De Xin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087d53849f9020be1f3f6fc8fb5675e25d243cc9706c8411f8d75869a5af5518. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADO1854001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11c3233faaab49fce12ffb7f5d90a7652da1f3dfdcd7a09656e6e34c95e5d77. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCADO1854002.
南海姑娘 - The South Pacific Girl - Nan Hai Gu Niang
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc303001d348f28b50706c8fe55e01e553b14910eb60beec36745e3c74ff07fdb. 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/TCADO1854004.
我只在乎你 - I Only Care About You - Wo Zhi Zai Hu Ni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa126630d938407070926dc536509fdffe543209cefed0286c6be9df9c5475c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADO1854006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0460946b7b07c0904e8a3925eaed9439529b802ccb579f3cc47546c41870807d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADO1854010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a819faaa73d0be6585c5fb091c215261e01086fa7bad29f3deafeda17333b6. 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/TCADO1854012.
何日君再来 - And the Day Will Come Again - He Ri Jun Zai Lai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd319b6c80c1af67c13ee10f2b2d51aa80ca846f23c880b1092f9a92c454df56. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCADO1854016.
槟城艳 - The Beauty of Penang - Bing Cheng Yan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdf7b4bf1dc0cad7b2a1e079857f8fc01c6eca4462ee0aee25cbe52e8400e09. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCADO1854018.