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 0xe89cca4f9b954161ec8fc75d4cb3c4779a72b0a97c21ad2ba7b37de4828f0919. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/add1ff5a-63b0-4f1d-83c8-9350b283be53.json and https://artists.proofprofile.net/proofs/artist/add1ff5a-63b0-4f1d-83c8-9350b283be53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
呼伦贝尔大草原(乌兰托嘎音乐作品选1)
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 0xae230456a6773a98d3da87dfb6a96a3d4379c53729b51d43c8edfd3bfed507f4. 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/CNZ281800545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744b886ea10106dcf42a3936dec35cb19a18374c8c9cf88e328bdb904a4e6497. 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/CNZ281800548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2b474a188b60bfba038bd8dc9bc6fbf60e35cd73192ce32923ecdd359ccc12. 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/CNZ281800550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c20d4b3f51a9eb6dcc6ef43ac0cd50ab3c625a9a5f04d4df66dc3422658454. 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/CNZ281800547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812b859ee0a5b1048faa756b079e289e34a1b4a86c8223f203e04ce14ea4191b. 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/CNZ281800553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6177851e8d440b2470997a5c67e9d82d50960b0eddd257de1c24239d4dc95d1f. 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/HKG731790788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52dd8b2f0c87f903be90eab10f29d039fa58ae35507074d014f1c27c9424bbf. 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/HKG731595543.