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 0x8da2d96909da701f4f2f260067ff70268c55cc08e4a1031e1b86924d1bd80f07. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c924f04-5e95-4aad-8b31-446a1d62ef82.json and https://artists.proofprofile.net/proofs/artist/3c924f04-5e95-4aad-8b31-446a1d62ef82.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd251e042b9a62e32c0b3a8954d32268ac8efe81f1fd3d83cb1f61bfc3940473. 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/HKJ341680065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36b73f774309a65c187b6055da3133e59408203fd19c80f3d4f0b161271bf20. 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/HKJ341550019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9406324fb8ae4034ce208d61aaea125dbc542ec26068e08f26393f2f5ca44fb9. 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/HKJ341550020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18924ed5bd5b818dfd380aebed2670c707ec46cdfcc29aaa69489671826d58b. 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/HKJ341550021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff529420e1654c83c46909e208f5ccbf349dcaac538d2b5d1f77dbe50ff1159. 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/HKJ341550022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ade6fc3b30273d678511963d2d2ba1908548eaad74bc7e97b101a2f03006594. 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/HKJ341550024.
愛莫忘 - (微電影 "愛情來的時候馬來西亞篇" 主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9270b2cc010263d1dc6b235c324a814c00fbcfbc150f8222cb21b36298ee54de. 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/HKJ341550025.
鋼琴哭 - (微電影 "愛情來的時候韓國篇" 主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c39f436c0a0ccdcf057b3df8e35a655e12a704964d1ddb526928504a4eb1f3c. 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/HKJ341550026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc45f0f8c893620cd9ae3bce15ff9a0917fdd1a02138b059e5040c94a61474f7. 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/HKJ341550027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e99b4aa0cd57eca8b276125b764c79d3ea3061a513f9351eba984209df9ebb. 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/HKJ341550028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244064f89b4e34a128bdc17a777a1787def2a649c4fe396e4799f1162e974781. 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/HKJ341550029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32af52ef01d847b300d5e85fc64e11192732ef450f4446eae9b34c631aa0d41b. 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/HKJ341550030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0799659ec1cec334e999f73d113e54b621c70588a144e21390aa9fa336ea2e8. 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/HKJ341550031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98917133b30e0f8cb09fb60362912c690fbe50c96fefd36d9b36437541052fcd. 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/HKJ341550032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd447ef63560d937753e406ee51f79280ffcc516400317f5cb5515741c1978b0d. 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/HKJ341550033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffd00f22ac9a25d110077bc5bbffda0f2d889f257bb09878c2ae2cc96dfa58e. 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/HKJ341550034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9093151b16e7c366693470e2578503150f361d4373b60e853330b969c9009c. 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/HKJ341550035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80654a05bdcb3d85dd82ab2a027d53df46fa852f63db38b59349eda3911de721. 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/HKJ341550036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c83717aec4dffeabbed322bb4686d34dd83608292c4799006c4344a004cbcd0. 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/HKJ341800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673ec4ec60b26b5756dd48f4a3d1f715ea613d2bb6bee429e3a7678f4ec2aab3. 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/HKJ341800037.
舊歡如夢 (劇集 "愛情沒有來的時候" 插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb690ad1bc0b6ee7e5e00b4d1b69a1d4efc5e71fdbe9cd2b279f361f42ad216. 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/HKJ341500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1fa8fb2d6583db3165f9e4eed3a44a1e9e44ce19fab2809d02ef99a9687ddc. 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/HKB041300645.
不再說謊 [Full Arrangement Version) (劇集 "愛回家" 插曲]
不再說謊 - (Full Arrangement Version) (劇集 "愛回家" 插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b4165b06eb07033ec1cf7c60bdfbca80087058b2d07d14c1129eaff7d4ea7e. 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/HKJ341400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087cf8c670b6c44905b3b8bfd2e2cc267e0406764be2d16ba32ce4472b6aef5d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/HKJ341400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8215dbeea08edf67dba3a38f22212ee0051e641ccb36873ff00d2c093fcafb73. 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/HKJ341400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676475367c006a04b0eb1c6ba31d832f7cd3ab7100162967b70c8887fac1b655. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/HKB041300644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124f0c8e27f507ca16bac001dadc125f2c4df6d203b1fe52a90c3103037b3837. 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/HKB041300651.