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 0xf4c0f1320abdaa9d013696f4e7bc3c8020c29010993d92c261d0d1c365ace153. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9917fd6e-2269-499a-af68-b2e7db59f3a6.json and https://artists.proofprofile.net/proofs/artist/9917fd6e-2269-499a-af68-b2e7db59f3a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
恭喜恭喜 / 鳳陽花鼓 / 春花齊放 - 修復版
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 0x9f0824e3728e9b3822b8e1d3fa164658fc544d3be8c0448cce4ce6b56f5105b7. 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/MYHY11505826.
向歌友們拜年 / 幸福花兒開 / 新年好 / 大地回春 - 修復版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeb0f6410be5e218f08138ac4b1283743130f2a864ff082a7969475adf344b9. 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/MYHY11505827.
春天來了 / 恭喜大家過新年 / 新年樂 - 修復版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde62571ddee0494c67e1c170bab5735a65cf2a92fb761538ef577afed27601d. 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/MYHY11505794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb505cefa172e33fe648790662ea5605e161b72b7f3521147282e3db72c0b6b76. 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/MYHY11500200.
春 / 鞠躬行禮拜新年 / 花開富貴 / 大家恭喜 - 修復版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0745fcb77f5a6e650204fb3acc67fb434441afe9c08cc872b5d06f8bd3000e0f. 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/MYHY11505828.
財神到 / 大拜年 / 小拜年 / 新年頌 - 修復版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb4d0942cc93d5fe9329900b2574b67d20d3e328736160d02c41e76af5a5a28. 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/MYHY11505829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e75fb2cb5d7c960a8b2c315e6d64e65143241d71d973f476ad97d8598778a02. 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/MYUS12520603.
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 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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39402c7769650a7ccc8088d92e558669b4750989f3cdd9446eff93131b52504. 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/CNZ331604579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53523c59526d93843caf1b78f9ba63166c6e0581729aaf82988983a34c43073e. 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/CNZ331604578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18fd67be1285d161c34c84ac00282de766cf27e62d3cf6f5cd289d3f858d296. 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/CNZ331604575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448a140b22a0f56f5c2bc307cd621ea8da6d6d2ea18ce5ca9c917b7ead738641. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/CNZ331604580.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32de5c357667dbdb826d0a03a0420fa05683bc96fae04b9ee31ee57294dc1e17. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CNZ331604320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7501abe38c23aab45d722bb5a3293be98269b97d8fc7f6f089dd8d06f5a708d6. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/CNZ331604310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa008bc8bf9a15cb3f937cc8b8b549d6c9e3e243ed216e41b0c0a29d7874545ca. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/CNZ331604584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8126c82d523d37473a4e6792ef717fcecefb818ca4a4ff6b0716fa1f57272466. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/CNZ331604583.