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 0x5dd4f3cf73a0dbe5e062b3b68de671fd3b38c405a6b831771dfcf688631bd390. 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/dd1d1523-2fc3-43fa-a1ad-bd62e9178f6a.json and https://artists.proofprofile.net/proofs/artist/dd1d1523-2fc3-43fa-a1ad-bd62e9178f6a.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 0x1d4f219143367f987bf6ce738b52bd55f8efd90436f2e9d182af95ddf8df778e. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/HKG732133084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee4818de145311c97d9ccf13107710539bca529a32e27a7e41f93b41c8bd4df. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:30:32Z), 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/HKG732133074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b4b0e9cd901a64000914af23f5a76ed263899d2183df94441142ba80e1d688. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/HKG732133075.
想带你到蔼蔼晨光里（网络剧《龙日一，你死定了》第二季片尾曲）
想带你到霭霭晨光里 ("龙日一, 你死定了" 第二季插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0157ce9cbabdbae1b3e4bd3d6235fa4b3b302c7b2bf6c596de426796bf05db01. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QSR312876149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa0205101f0efda3dc6842fcbbb25a4ce8498f8fcfdc26224820f807629c756. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:43:17Z), 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/HKG732133114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcb9ceaab9381784cd98f8e9fa6c870f54969229c142acb3b07294420f83c85. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HKG732133110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf577b103d63bd59bd069b18b5b072591c57492ef81953d92af1385c46f7757c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/HKG732133118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015e9d5f12c26ce9b9e11ef9e8f033a6a2a0418aa20093312a7f537b6cc2ebdd. 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/HKG732133124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2ee99b612e7e86dbf72d28d4ae9bead445a2b74c163b6668c41d007f104a90. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HKG732133148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16361b751095fa6e6db5ded604c63b5e4bd92dc411a61645915166af6c169e1d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HKG732133071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22f590b7834174966f957b31cd7b1547e765186a48ee59def32c38247855108. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:05:41Z), 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/HKG732133139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e1aee922748ddab3af2617fbe04726481f2df0e474fb4949a0e3b8525322b0. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:41:54Z), 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/HKG732133112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6415dca4dadb2c0c3163535d3b11e611ecdcfcc2d79ed6b2db7032fd0a4865d0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HKG732133130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d7259d31155682ba0f0299dde0b06209661584a29cf8f125c9f51fed9bffa2. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:02:11Z), 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/HKG732133136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3271809a5e809ca36cf180830ed42c32628fd458e2eb0c1f77e7493590d1fb03. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:02:06Z), 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/HKG732133070.
故宫，你好吗（《上新了·故宫》第二季插曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a5c582117489bb5525924e794768310946f3ccb8665f7a90519a334d02aa13. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/HKG732010723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb939de13f86e774e350e8e8845a2ac40be0e790a8b49ac706987177bd4700c7. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:35:35Z), 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/HKG732117895.
寄明月（梦幻西游手游同人曲入骨相思）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1db23001715f1c24d0dd0e998fd1fd07358fa372f9904af181b256069e50ef. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:30:13Z), 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/HKG732117963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6675c38fa5360fbd628fe0ffa649039b3a2660b2bc68bf36c091f8718eddf98a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/HKG732153693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fca9bddabb05cc62ea15d4bafaaa575c95c87271cb63c841a5ab3deea16455. 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/HKG732156796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef9d86ec7d13551bf9976309129389987df95cc789730b75d143b29c2a3d286. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HKG732228294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bbafffb619815be4fb948e2fd3ce820a55dbb7db4c47594f4c5a882f1cd338. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:45:49Z), 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/HKG732267352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5491e90bf5830491a7dd9127cb0211978c00f58bd5aee3a9eadc8967d7901c86. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/HKG732269718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a814f8fb770ec712a0137d89eba85a0b5574d47f7975979c2b358c7bbf4b4f. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:36:31Z), 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/HKG732375220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7890d156092a92e9616f6ea3a53c8638859f9d8afbf97341776bff7569c49b16. 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/HKG731684976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85538c6bf612a3d83c265606f8cd8091b294092a3211261de274cac1b026b44e. 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/HKD012318593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab9ab2199c005572c63b1090c52d4b2a788c404e5dcf5cc8e09ad1fe0674743. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/HKD012338829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99a97850bbb8f35256b126e8007b7890b255610730843abe3e1fb515338d5b6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/HKD012361092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47691a6f9b947196a015ba86e5f0198d06d7dbed6f796edba944185f96a66f41. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/HKD012371959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e06c85900eb9539b7a62a5c42da34d1bcc2fff88eaa3d9f60ba9623444fa4b1. 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/HKD012375033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd7967a2e7b53d890f0103daeb040fb0c5da8c4bcd2c4cc1eb002d92fe6170d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/HKD012380312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790e0cb72f0b50f6028ee149c067b34238fcecd39995c60d2ef0127d99b5cd5a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/HKD012466189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0489c81127f86fd88083657940de26cc24a7b4029b5cac0e79e0ec9905386d. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/HKD012485611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e6f7c8a89afd4c9143b34dabc5581204c7bfb36c6f097948bd91fe77774e98. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/HKD012529294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc915f03d16ebc11e66dccef45dca507aee83743acf892deb11602335b168c8f. 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/HKG732132913.
风花雪月颂 (和平精英《风花雪月》主题曲时装专辑)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e14408a2ac2d8a1008e07f2252d0505e896fc85a75ec261290e9047de70b807. 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/HKG732290551.