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 0xb21b02518447a1ccfbcde4303f5043a2008c5c95191b0c59462421d2351c712c. 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/ac4dd064-6fc4-48e7-9e5c-dd1bc546c8b2.json and https://artists.proofprofile.net/proofs/artist/ac4dd064-6fc4-48e7-9e5c-dd1bc546c8b2.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 0xf330fcdaebc41abb0bbef0945002ef3b26518f194ec36eb0ca3fa0a00015f7d6. 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/FRX282455114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d7abd56b7c94300f4a634cbf2e78b28b2f4ef1d61a609755e5bc0311c349cd. 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/DGA0P2330084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb159e108f75949f496cfa73e3f9525544b193485097648ee8d7c766c182a16d2. 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/FRX202403065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28e407b9ac0f9d6ba43aaaf82b3b5e902e8cef6db4a6fee2f59ea6ee78086a1. 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/DGA0Q2347970.
你这辈子还能不能忘掉前女友 - 1.3加速版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd1f7cfb9fb0d66e84ef357a6fd1969d6322225370bc446a7940b9f1770849d. 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/DGA0Q2347972.
你这辈子还能不能忘掉前女友 - 降调版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a503542dcc75e7335c199198be867d451025fd77d54aba54784089167d9d187. 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/DGA0Q2347975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9373bcbc762c15de49300a1438ead72f2a6f915f16ebac5f3560ac936a0796. 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/DGA0H2307968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7273b319b57a4c9a9329b88977ce0f282c2f1ecde35caa5e48820091fe028f. 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/DGA0L2369519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7038670c92e6a298574463c589970a30557db12208cfc0205c2b563b297f18. 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/DGA092351461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe147d1b5cff4a98f377e84077b755e1ba8f6ddb57465f558c3599c74b137af2f. 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/FRX872369295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b79450202ec53a217f1e8d472735bc73191fab9eb8b8b192ebb9f9478ffd3e. 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/FRX762313883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a46a253ee2afadb7cd210e2e7ce6288173c88e2c0ad1f50291dade80f90af4e. 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/FRX282355992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c9db2b883dbde11e9207f7b302cf138200d4734a99800e38b5554b98f48ade. 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/HKG732228493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9d257b92d16ff3b2d54ea172eac2f04429624f4615195da87510af31913239. 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/HKG732128190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce8cf6ea9b84669963d0ad6713deb0559a76c7d2bbb452eaff205e0ebabdf5d. 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/HKG732152372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578deba394c274fae7d395340923a82cbc75c60ef8bcb95c0ac57a4fbab5394f. 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/HKG732140731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08585aeed2f03934f5420ce65d19f40b9a2b3e7e90f653fd997a20e58751218e. 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/HKG732140443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeafc117e01800f41ecac780b2f264504eae88b3069bc55965166b9eb38ef9c0. 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/HKG732119142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3ff91f19aff810d66c2db4b1d95fc160f50a9cf87e40eb9e926faae2d3b155. 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/HKG732107061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac45fd5ca9660fcf51617c67be153ee29934d5e2331e9934eacf1ce6a14ddbf9. 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/HKG732116864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84c4aa513232e24c6686aeca94cb8c3380af4c4129c29357de2567ca53922d2. 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/HKG732030443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ce79d2471f7278b42cbb50bdc11c07cbc0c124066cb457d63d828f2a990bae. 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/HKG732029693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf65f998ff47d059a60b81cc735d478bf3c30272fa3f9db1df4c5b58ad6ecc23. 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/HKG732026402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe171d2c685b0182e53a48f98e56c7cc9993a46a462d1e820905cf9b780671cb6. 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/DGA0H2432233.