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 0xed4c516a52352b9291b574018b88f524f6f37d7735e993c75f0e91d277f85757. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3245536f-4431-4123-9788-63e41a80753d.json and https://artists.proofprofile.net/proofs/artist/3245536f-4431-4123-9788-63e41a80753d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
時光夢花 (影視劇《白日夢我》時光主題曲)
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 0x6697470622f5df9d2c6a56d94d5962dbc024fed13730f9c8cda4f3af6257f27d. 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/CNZ842300174.
白日夢我 (影視劇《白日夢我》青春主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6766862549bb3e25f8d92c4796642bc8ae9824a03e5b70e9b8c0ca9178ecfde. 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/CNZ842300176.
倦鳥歸林 (影視劇《白日夢我》情感主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c925db8f4643156589361cf3a97d33f676dcbfa8b4b5290e4f421df7b32cc0. 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/CNZ842300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55767eede33062ee52463968d8b853af7602e5a54004df159e62fa363fd45d7a. 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/CNZ842300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18cc948d10f0ffc68cc65a8decc9573a6b14265a6f73ac9299c4066a99369af. 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/CNZ842300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8cbfb2dc68358cc674a536a8ff6ab59bf1a47d6a6fd970a69b2207f1cbba27c. 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/CNZ842300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9f53472d094d58a234ea650e90ae8883542889ccfed148064d67e32b12c2b9. 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/HKG732004719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef39d12107d3272995426d551b10520380d5994967058854da8339b362e627d. 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/HKG732004722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53927a70005343e7286efdbf5c929b1dd9b4ec182d7df506b12247695afff076. 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/HKG732131288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb2fd7f79e790dea4945a1c9ad2b425a2a8d39c42ab7dff2ad35057890b6190. 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/HKG732013770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e41172991b962b3d0e60e58c9e789a50b39feacffa24ac08a6dd7f43f5a27a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/HKG732013771.
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 0xfc014026f418da5f51d1688682cf045fa5a969f4a10073c45d44d6d83dba583e. 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/HKG732004729.
爱情嘟啦嘟 - 《恋爱播放列表》网剧推广曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc12189185a935d113733210c89586ba5e40c7ce4247e408a009aeeee67a64d. 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/FR59R2040650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8d83f38205a65fd0144bb6852ebe5aea0f5e2f95a5cda5c27c1d41c9c4f4c0. 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/FR59R2040652.
爱情是什么 - 《恋爱播放列表》网剧主题曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0081e43566299671aa674c8ad51808cd9f904c24c253b666f8a1889b5add6b4d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/FR59R2040648.