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 0x3a93ad094de138dc5e8084682e998029a0f6a9df2750aaedcb81fae611712f22. 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/6593a43a-0467-4637-99a3-676cfd289188.json and https://artists.proofprofile.net/proofs/artist/6593a43a-0467-4637-99a3-676cfd289188.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 0xbfe825f92adcbca2076fae81d2c2582b802ae1dd47aff2536d5f1d1ac5913084. 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/HKG732130867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df1b050015c54bbf3854544092008446cf209644b175607044bdc0dc3e2b1c7. 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/HKC992325483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed6e22c525617b8b83f966239b98427401a41447dcdea8cf5316b7ec863b451. 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/HKC992324629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3facd5e9816fa428cbd9740fcbf6fb5f2d6bb11ba1f846e265ffb3b5f4fb82af. 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/HKC992324982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df1b050015c54bbf3854544092008446cf209644b175607044bdc0dc3e2b1c7. 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/HKC992325483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0272cb02dfa720daf4084df8384343d1aa0f57bf83516424f1029b6c80dd2a. 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/HKC992524363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3163e2f65e5ccef14c70d25f62fb7eb98b420a2eac450be39ff7d747a328f63. 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/HKC992524361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bdfcc96ff6560ee827fe1d55150707f2ef4b5dc3f2631d89d7809177ff4b82. 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/HKC992524375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0e36c7dca12a74495c6cc24c61c2294b6673f42041bd249331124682174745. 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/TWU712003289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9341b7181dfbf79498e2e8c1f66b997e6a98af2ca43ab2609c170b73658a09e7. 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/TWU711903691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900dc5be7c4a16a89f4fae50ca08c3e0cdc6ffe11a0c95d674de6a53d003cef8. 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/TWU711903694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6a407f578ec9165be4229be8e9060e61d72d7e77d625c44dce97b67d6c2371. 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/TWU711902378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251f4ec0b3c881d5d1c1af27f8466dce27bcd0c440a5a0d00ed745443f83702d. 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/TWU711902972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636b9bff2cde6827af494f911fb45f0252b26cc7fee674c7bb508b1e77dacc53. 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/TWU711902560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71121370ce292f3ad2af0961b286582b196636f9b4ff0dc45dda98ee8d66209c. 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/TWU711903137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c55b297ebb478bedb1fce3dbf83d290137c9cb64f3407cf76d56f59f92764b. 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/TWAE31801651.
如果寫不出好的和弦就該在灑滿陽光的鋼琴前一起吃布丁
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079753c49ef051cc5cd7acc255b97ea02df1a28cada953e0bc3ead0e3ed9bed1. 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/TWAE31801652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe979c55cf8929ab484fe822fddef58d0df30bee608ffdf628fb3fffdf73afed2. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/TWAE31801658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e1ece79342757032edd3d846ff0070ab58275fddf0b72434e2e253b535a5ee. 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/HKG731683106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9c389943b0d778f2abffb63da9eeae487fea43acac8af1fa5d907d381fb468. 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/TWU711903121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d1b2788572211fb13a44a9025de9655fb41bbd0506a9f3a419cd30ab07d369. 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/TWU711903115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83eb7d0f656c619398529019a3328b4fa503cbfe6ac5c0688c7e5af46eb8d3d7. 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/HKG731683108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de009d2be97deeac4c9f371e32b92185afbb1503d392584699b46051b27c9ba. 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/HKG731683123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4324a19daebcac9be0404f1e96e423a7e693a44b5ffef0ac7feccb1a6e850869. 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/CNA231601054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095c12c6fe9ea4467678b2851d2f4bd33541b6836bbbb59f0f3ab0328982ff60. 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/CNA231601052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd229dab4bf4190bc8c2f12aa4dc86b141593c104d6e337c9831808c61d180a72. 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/CNA231601055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47efb1eec0a02dded5676dcd1f21dc26079d36b786bbf801738f0ae6451a29bb. 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/CNA231601051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d318bf25e4af6ffa4741ecdc365471608d7b997d020e162f0b10e374bad841. 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/CNA231601053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cbc02ce3a8ee4388fff374caea3d0c98b6c8a7cd4ba93a5ef47d314e8c322c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:22:30Z), 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/CNA231601056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2581b9a5f16a727be818ec7572589ac63c3d0d0cdf2592ac73d40d3fb09b1ae. 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/HKG731683126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20381bb9c6abbbe9c9abd5b5b1ef9c28dab577a7be9fd4f5396e0294cdccaec4. 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/HKG731683129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688428c7978f25749c2ec725ceb5998b7715a4ab0a340c5cbc97a01940a19123. 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/HKG731683132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb150026839112eb45c270a17c0111bb9bba4e65c83e3e99f7b9b9dd3148f4b. 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/HKG731683133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5929d8ad4fc7a56b3360bb2f4d9d3409efb6f61d06e68b7bcf5a03108f85b985. 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/TWDL72306807.
一人有一个梦想（粤好听•青春重置计划特别篇）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014a5d2c45c9807440b9e6ff12745531dde6ec869610a9240c133de04201885f. 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/TWU712001597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e2b6f4fa5e1032d5245330afb298a72df067272cf9a3aeb1f3c21a9c18c07a. 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/TWU711905690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730f781131070de5b5d2014f596821152a93aada4deb3d1b1e7cb57c1a2f040f. 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/TWU711905484.
月圓之夜 (遊戲《月圓之夜》同名主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3759669fdc5698ee3a84fc21a41c51c1cf46277c9df4aa0d99211c40d1f4d62a. 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/HKG732488646.