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 0xace91dd8bbebda611bb69c24f77678415e554eea452d18df0b233011b9bbdeaa. 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/e6416bda-03a9-4e93-8e2b-c73947f53d45.json and https://artists.proofprofile.net/proofs/artist/e6416bda-03a9-4e93-8e2b-c73947f53d45.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 0x1f00b857ea265b70eec0f6acaf0f35dfffcd307e5b43d8ff18b2b3828390509f. 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/CNF181701535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3e7ba6d63845cba9f8c28d90798490eb5ffd56c29c6e832eed3b72eb5b0ee1. 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/CNF181701534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0dc867a3594c37c2b5071d0a19cc5095c4ae90e3fb20aedb1dc72a363cce9ad. 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/CNF181701540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf485fea61f556eb3810d58ffd4b5ba1016b94e9548ec1ad0f75d194c7d82de. 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/CNF181701533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc211d5a93e36364271607de503cad490341c56a2d2eb061393e6999995a5b7e. 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/CNF181701532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a304f0cd8070d1388c54c493feb0e19644042e057accb259bf7438698f50a3a. 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/CNF181701539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080bf1e3c225d7863f41d6405a92058ffe21c24c27045f26fecfe7c54fc5a0c0. 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/CNF181701541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc736215eebef11d0a9f797be7b4a5610eb247f59fb9524dfde81e4e9cbf3ae. 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/CNF181701531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5977b362d7bd52839230f90e18271f3e74e904116596d2d55f4c0b5ff0bc80. 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/CNF181701538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c30d98447db9f6d78554f5c3ba144d9ff8a90759179fbeb41df64a1cf3a7203. 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/CNF181701537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757469bd71318c7bbe33ac9c9ff62d5645605140fb528eeb1b9a1076703bf7f5. 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/CNF181701536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4269b9c14ff09a3d89dbf4ef43baef92cea6a2b54748855a51ad9d873b79587. 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/CNF181701530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e4e645d3f7cca71f389cce5114b62b9d09d6f5d34d5d13245430278d6e45f2. 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/CNF181701529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3069459042c1d1e6ae73217fed09dc8e53b5e3d2351ef582de04f989bbd27e. 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/HKG732122308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a3e5ecb598e66b26b83e84c7f6bea25f2592e89b259cb5f93c7597d6bf5879. 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/FRX872199600.
《万物生长》二十四节气交响套曲音乐会 (现场版)