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 0x36edf14011ad94aa61437ba894f0f79c8c45f0520d7fada29b38de482ce36e71. 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/6095b8b1-c21c-455e-90e9-77782e617be0.json and https://artists.proofprofile.net/proofs/artist/6095b8b1-c21c-455e-90e9-77782e617be0.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 0xf49edd990dbf919e8302293a54fe6c7d063479b2edbfa358cc075d80c2a7f46a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR10S2538717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49edd990dbf919e8302293a54fe6c7d063479b2edbfa358cc075d80c2a7f46a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR10S2538717.
炙热长河 - 电视剧《国色芳华·锦绣芳华》配乐
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5026ac7f47e2b6e44dbcee95949eea1e355567c03bd8f7e56c4f7dcb1a26cb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX872543434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ecfafa246b844ede030dee3ed9ed053198fff17c191e5e324845235dc6f968. 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/FRX282479842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130d76ef0536ec4ee9a4fca56af715172dd0cb9da3071152ca5c3a1740228265. 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/FRX282479852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb951f00e1c6ba08042c0fbf7af7be723a0757556579a239d0b47cf4ce1777c68. 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/FRX282479847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecbe7c34b15e310f63f7e4e8d71104c173b56788e74ad240e87531cb41e31ac. 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/FRX282479839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb1d324ed8f24462deacc96cc3c99f02128c74b5870584582c7c9dcc5e0e196. 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/FRX762440791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e5efefb703dabea5c8e7336e6a6b0f3da8a56e85f35ab6489c9f387052ca6b. 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/FRX282479844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e29220dd61672d7a9639a1e89d6bba9ce5527fa4b3347c0b9cfa98e65262d9. 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/FRX282479848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e9f3934dbef3e2f57c8f6715a5db61cbc2f48f054ed5025c542ac2e2ab0d60. 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/FRX282479849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107661feb9a6a80b1d90b5bea2e7dd92c3b1c7af747f87b653b5412e45198865. 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/FRX282479837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a30599ad5763a6a917c754c5c75c29c2e4cc1063dc7942979ca81a542e7fb0c. 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/FRX282479838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b7f1950d4bb3847d2d08c31011f361ab13f4251be27164843e4afda0438905. 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/FRX282479850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f73ec2eedc2b0c07e29d3e258b92755bcc2c64f15618248fafa857b99943f2. 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/FRX282479845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab441e586b052eafade628ab2b71c683d15d4224fb6ddeaf55e2a354b492f1d. 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/FRX282479846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403404169b701de15d59413e429036d8cd02aad58c36d5aee7cfaca2142bf3fd. 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/FRX282479840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ce3abd7da020d2f9329f29f15a014fa9d6990204c77e770cd3997297a9c5b9. 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/FRX282479841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ef19acbbfb8dcdee37692183908a816c1a713464fcca424ab655a2afcfe4f2. 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/FRX282479843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9582d4281f210fd2ca14275dfe416b05dfc722b2f62189efac40a3271ab765c7. 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/FRX762440792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf816250edba05e312e7196d41b4f5349b16905eada36c39c675789450e34dc54. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FRX762440790.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b7c416b953a3c9ab21501a6682cea85ed07d7c22396c3031fccb59ff278792. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FRX762440793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a2d5dfa45e31be2a221754d71b767241893467ec50dd572ddc98a4d49f9d40. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FRX762440794.