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 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 0xd49fbe5f033e85752942cdff886e0d95d3db85457d992e411cd4309cbafaef28. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03bef37c-e592-4d56-86e2-92cb87ab4a1a.json and https://artists.proofprofile.net/proofs/artist/03bef37c-e592-4d56-86e2-92cb87ab4a1a.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 → 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 0x6114d664d0ffa2b985039dd4a2e15679e2a68eef8de304e67937bfc2250ee1d0. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/HKB128006058.
多一點精選集四: 葉振棠 - 戲劇人生篇
葉振棠我來自廣州+百份百經典金曲
葉振棠‧百份百經典電視劇集金曲精選
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4350ea91b58b63086f835eeb96b09bc07dd5d55a2bf5d4bb288431d2d0b10297. 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/HKC639722703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9c8a9ea0dfab5b05d0a5e7bee0f889c80bb26f657f0e435904a370787924a3. 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/HKC639722704.
找不著藉口 - 電視劇：浴血太平山主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a345fc3aac1a018ef8ef6060ba827493eba4869ac19c7b2c535d64252615425. 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/HKC639722705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3f9639fe1a733b371970c4bb619821b4ab8b68d5291eba40789c26713d9adb. 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/HKC639722707.
大俠霍元甲 - 萬里長城永不倒 - 電視劇：大俠霍元甲主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fdc8f6e9e4888ac772b0d7f1b0c316ef0adf5aaf8ee6f82d4cb808ea902a5a2. 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/HKC639722709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382701b125fa370c397ff5a3dcc8a062be868643d9377d87746812e4dc2e30cf. 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/HKC639722714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dc228109bb6ca94693449a88b98e18972b9a07b9c99a42bc3df4ac3b5d9690. 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/HKC639722715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6451172994020b3c6f1ee0835131b9f50fb116358d89d1dfe8376967848b416a. 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/HKC639722716.
萬水千山縱橫 - 電視劇：天龍八部之虛竹傳奇主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727d3b3b3aed417bb8ac43d3b7cabafa039a1ec0ee9ee22d2665a6f75de45367. 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/HKC639722718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5571166cc5c7255b3f2147d2dc69cfd2ac46a9f37eb51be509c603b7306f8597. 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/HKC639722719.
一生愛打拼 葉振棠．電視劇主題曲+精選
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39c9e8cb9e161acb83f9f3ce85fdd309d83b2c2fbb45a11d5dc205144f4d51b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/HKB128007018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047e2d764e52143198c903666cbdb1d5558235848ae0b121c64656a87e61c62f. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:40:11Z), 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/HKC631406086.
笑傲江湖 (無線電視劇『笑傲江湖』主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bad06961de4b79842bf1cb86364ddadb3901fb70321dffa1438aaac04eea0c3. 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/HKC630400825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea22bc83f7589a24a05cd0be9166758abb8ebf9d29d3f8ae1d9d06ad6e84bc9a. 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/HKD141506019.
功夫之城 (風行唱片55周年紀念主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40a37c06f59cefacc44b4a32c918afb25c7b4e52547878c9a76bf97cd8d0656. 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/HKC632408071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2d6a89a2795e6040ab5e696352f5cf7a7ea26c461158bbf7514dc9b3b87db3. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/HKA822400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb376a20125c9969d6bca53a2f42fc718eca128d71ef6413324cc507b97635cfe. 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/HKUM72400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800cf97de322feb178a4c9100839d15dbf8839529dcb124e8e73d36cc7a1d20f. 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/HKC632408069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d0df9ed8de17102d8a132c368b4e5187c2e49f9f177160176c3cd2ad2846a5. 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/HKC632408078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40a37c06f59cefacc44b4a32c918afb25c7b4e52547878c9a76bf97cd8d0656. 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/HKC632408071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7848b2b64cf650221c39ff16daba11637658c7cca21528e8320f53a07e44f083. 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/HKC632408070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258287ff4607461e2a413a6ff48c323883a34fdacf3539b659a6df6faf394613. 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/HKC632408072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cfb7a59d337c139fa03ce89a75a3fbefc5067d5d66b374b878b6c6e9984a50. 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/HKC632408073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e6c418db09863106ef5796b7ca9fbaf3e78683ddb607d46446d20eeb159f1d. 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/HKC632408074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7201e696b7f8ca292316685501ce900514f8a6f04d992ebd5dd9eb09bbdc3598. 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/HKC632408075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f8d494983159d06059f27b8ae71e3a156f89afd165e4ba7a7e39a9708fef19. 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/HKC632408076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262d19aeeaa488ff5b6e95bfd4fd0bcfccda5497f5f668efb7d85fce423ddf06. 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/HKC632408077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72979b5b61ea63035b39fbff85e8d9dab5ba2fdd583d33d49573c72b5eb4427. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/HKC632408065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ac2a499245382eae7de01cb057605e5e27110a75f7b025bfc9f0649641dcb9. 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/HKC632408066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d6b5a8ebb9f10c40f9d295aeda9ab88d80c696e9c7b310fb333dd43cc0ac34. 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/HKG092300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f5f0ecdb8a81808ef987f98455b36e194559214960cd8bc7ec1f47d6b5cc8f. 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/HKG092300082.
和平之歌 - 86國際和平年音樂會主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef73feacf947899e09c80bb8bf75dff5616fca249e2df734554fffc930c548e2. 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/HKA610400688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636e1ec8343eeb34c8c1a21fc86a2874662fa8b7cdee35226383c79a72201250. 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/HKG092300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef73feacf947899e09c80bb8bf75dff5616fca249e2df734554fffc930c548e2. 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/HKA610400688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe874244807f9ad7742b7e8ab6391f5eca06a358d873f9b7918657359a4eefa59. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:57:04Z), 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/HKC639722502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914a1c3d73d5735d756ac8e13e408cfa6296cd264eee561239f09a731754757b. 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/HKC630400814.