1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x49a4d0eb29d2f69f249ca4edec113d7dfe440f54cded37ec2d1afe49792426da. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5f04e79-9048-4743-a44e-b5a7a67b96fb.json and https://artists.proofprofile.net/proofs/artist/a5f04e79-9048-4743-a44e-b5a7a67b96fb.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 → block OTSBitcoinBlock must exist at that height 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 0x77bc1fd17e7de8d5d757856e0c37931d0e571c26285426e2f55d5bf56d1a3f1d. 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/MYLR10820066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c17594869085aa3bca9510dcc413219fe556e8f2526d67e92138064437933dc. 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/MYLR10820063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85064d5eca891a7b6e83bf04b8e38ee0fc43dba148d1a4f4c0eff2f379d66c3f. 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/MYLR10820056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0fa8b0cb94eb25ea483161d0d3eaa9ba6e187880014e716fe301fb1b95a26e. 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/MYLR10820060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c029fff9d34716523b989e2469e5d0871f08d56cf8987ae2978536d11d4317b. 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/MYLR10820040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1807171e7a6aec546693b2b2138b353999126feaa34bbde0460e2b8dea65d4b9. 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/MYLR10820058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa163a4c60d68e8cb874318337e8c22aaf53b6c3330b6d90b2316327aac4aa7d9. 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/MYLR11320005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849cfa89f49fe753b9abb1dec321b066090d8eb27ad43abaf00cfaf962fc5bd2. 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/MYLR11320013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc830530f87d860315e835a45d69ea84c02f8e4dce801de2a6b69e113b2960e3. 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/MYLR11320015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2686081cd4ed61b92fd6f6932a73937eb31470119d08590436a5987051240aa3. 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/MYLR10820036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be67d448c5a1689ec7bb14acd037f4cd9574cdaada9093a35f0ba8c10e4ad58. 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/MYLR10820802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374fc5dd7c6150fbc429d1be651958d10719622e79366f42e946e02c9ad06eee. 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/MYLR10820348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c17594869085aa3bca9510dcc413219fe556e8f2526d67e92138064437933dc. 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/MYLR10820063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfce0e7dc87da969879bb91760fdaf1c9ad612d840c0ffab428f3c901fb7bd4. 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/MYLR10820653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923d90aa5b75cc024c1a93b3389d33449062e1dfc73b64f35ce1d4b9c597450a. 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/MYLR10820442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4787b4cbd6d70a52a84716ab61d3d0e259f39d28a4dc9b3a51cf56f8f5862f10. 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/MYLR11420040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11202e7dfeea0f1ec3ef4d144e37700dea707437c950a8f3dfa32c9f6708e4c5. 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/MYLR11420397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d718fcc0c07e745878bbdb97ee4f4e4e3fc0727c21785736412e795d07c0b81. 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/MYLR11320990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468ebfba15bd0dee339263f06fa6b9c79768fffbe909cea54fe561f01c59f309. 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/MYLR11422037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c37e82d8b35485961ad7c31d261c25e2862911a641fa563da51721d094d2f9b. 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/MYLR11420666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa46143a8946023ab7eeef151be24b8b3871505f82c85b62a7246d1d44e0eff. 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/MYMT17700085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dc375974d218ac7876e7e3acca63953813a6d8e8eeed9f5985b7abf69b0bff. 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/MYMT17700091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3feb949e410291e9cb5f15ebf8e07bc453d89134f6329493a1f114460571fe31. 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/MYMT17700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bc4e669b939afce06ed0af5ddcf5377634fa48bef0f81d4d67cac124a0f00b. 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/MYMT17700094.
十八相送之 (三) (电影 梁山伯与祝英台 插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04850fdaf927b8c19432eadbcf9b55bb6d9ce35939c63d5b847930647b394b83. 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/MYMT17700098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463e3e6031754d6c4de6c87da7ef4e43b85039dcf419721a9e196fbd2b7a901f. 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/MYMT17700089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acd0e70b64ca10283de8fda3fd9e566e3d6d9e1284d8a24d0c6cfad525a97f0. 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/MYMT17700088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f9aed5a767bbc2aaea6cecff732e927b6827919ba16bec2930cab8c8d14024. 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/MYMT17700087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2d6af80daf1e8d56d9669a72e993d09b68e36e7349bb54156b88d4245750fb. 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/MYLR10820838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9979b84130c7512c4f3c9e445778a6bbe316f2e1e8df7d929ca83f23585b935. 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/MYLR11427594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823a4c37c202d2dfefabd6a488e96d7f05aad4ab576a787178f592e1f39824d8. 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/MYLR11425308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2d6af80daf1e8d56d9669a72e993d09b68e36e7349bb54156b88d4245750fb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:36:55Z), 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/MYLR10820838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab38a453cf417912099fa90fa7140fc9368b1f9ad91d3293adf750e53bbc9af7. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/MYLR11420672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b46cc4bf7f636b4927eb5eb278d16e3c5220f51c24668a553795da82fc8347. 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/MYLR10820844.