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 0x1db9b96c364a6e35034a8e164465a0c44fb231d551aee09a59d62ff64223f8b3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5ec8db1-35f6-4446-a642-3c708e241922.json and https://artists.proofprofile.net/proofs/artist/b5ec8db1-35f6-4446-a642-3c708e241922.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 0xef247e80625c850041ae7cbda9514a9a10152d312cd7b55c46a0d9fd5a971bc3. 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/DGA0R2300556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ab7aa1b3d341de76d644332b20d5a9bff06117cb2db438cfa3ba57f513db5a. 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/DGA0R2300477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd6fc286af8e3ed679fe1ba943d3b504d8d8d8bd02497b775e2b7ca5435596a. 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/FR2X42478543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01bf04d475b9a69334c4221f9630306af9ece29d118388d087448f2030e7f20. 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/FR2X42478544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565eef4e2cec85cf728dde8efcbc2923171e7e3c2585118d3d8c9d345f6f24fc. 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/HKG732268899.
未完结旅程《原梦冒险团2-蜀中行》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a803711de137c46299b336ebc849af57e3dbcd5bbe70fa62b91ac51ba5e998. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TWAE32303905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bedf024fa7572674f174fc3daa52187ef62d6f04d461cb48cbeec9eb4acd42e. 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/QM6MZ2336196.
纸嫁衣4红丝缠 (游戏《纸嫁衣4红丝缠》主题曲)
道不得经 - 游戏《纸嫁衣4红丝缠》主题曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60793d6efce891301e182162b2f02dc98ec2b5645d44971478f4d27270bf0d4c. 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/FRX452231636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc82f8b2584696ddd7f152fdb39cea72dffab005a342e9b16a9aba3bcd350b8. Chain 2 (Bitcoin): anchored in block 957212 (2026-07-08T18:33:44Z), 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/GBLPF6802951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cfdadbbdec364dfe0323efce514024bb5aedd1f9d8d553c603bd69c0db24dc. 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/GBLPF6802952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23cedff7a92526cb16caf467042a6352f2911618f799e24cae00d18319eeec8. 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/SE57V2338801.
如果突然想起我 (《原神》游戏2022生日会同人曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729110bd7c67ec10a1c991c39fa24a76576a0179e9d84d9910de547f4c607404. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWAE32204385.
如果突然想起我 (《原神》游戏2022生日会同人曲) - 伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c69237ad6fbd06c52d3f9f4c820fec2a686451cb15bd92edd76c5322a8c6df. 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/TWAE32204386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d0674330deff8fe0cb3ef7f7a30986ce6400ddd921672837d851a4985361fb. 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/TWAE32302388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8533614caca256b76648e5b43b2db747348cc8eade007aafac7b1955d8c068. 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/TWAE32302389.
下一个远方 (游戏《原神》2024新春会同人曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b088a2fab870adace49fe094f70b25f5340c5033062f7a9572702adb5c3eaa. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TWAE32400512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0069b95ca28ebf6b114f1042b2115dbaed82e3c7b96759496f326b3113939ab. 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/HKG732251387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba37bd897e8236d2319c1da53ffe6fedc1bb16e8f35219ba341f349b8027eb3. 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/HKG732251388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f76c4eda514d11862b66e0305989a95b27654a7b17006ab88a37c0b2d2b43a0. 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/HKG732251390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e7f05d4947348ce74d1b4e9f3d758c8a71275a463e3d72f024f8bbf211d908. 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/HKG732251393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06944a2b65d4ad22dee4517f859934dfa50969a41a3903dc513815325ca7bc74. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/HKG732251395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1832b420cc3b6c5c539abac38cbbab2af69f38f732a79ccba7aede653e93f20a. 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/HKG732251398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1665a6f6e452e199e4abd0291977c44390271c25b1140e7cd84a00b019af7909. 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/HKG732251407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e72fb5f4c7a4bbb820431fa3286c5443bec0aec1360278ccb1757c0005bcb3e. 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/HKG732483234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49496780b59d0fe18c7755015e30a3499ccfc63fae1dd68236c4a910d2e165f. 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/FR10S2554813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49edbcfa6734a53980cdf74ae47a6257bcfb07a64af5351dd67017f3ee70fc5b. 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/FR10S2554814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1242bd4e1283f3328d0d74c23dfef7ca2f8e0975a45f1a7152a7aba2681a1f16. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FR10S2554815.