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 0x25124d35b5aea7b1d6120c378456489f33b4393cdca7ed0c725c272b3b723f59. 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/a0eebbc9-9186-4c22-a3d3-94020d7731e7.json and https://artists.proofprofile.net/proofs/artist/a0eebbc9-9186-4c22-a3d3-94020d7731e7.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 0xff77259ff96d5d2aac5d86d44534386945690b1326753242abe731c445ffa1e5. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/MYNS11132011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725917b514d57e83b516385513e450fd66c1c133434888bda71772e582b6c213. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/MYNS11131637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a2342c9dde93d405758d978216369a2d37c186265592bdc777f01024cfaf19. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/MYNS11131641.
Fu Xing Gao Zhao - Ying Chun He Sui Jin Qu II
Wo Rang Ni Zou (Liu Xing Mei Li Lian Ge V)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4838b2be7743d5db56d52d65aa7b65bdef4de3dd7f771c87b0da2f43e6113dc3. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/MYNS11333666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cac3f94ef2f4be78206b30cfd88716b248953eca1acb8e3857ad501c543f311. 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/MYNS11434685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90608cc4c258dd0e67518bec95c0a055aef32215d4be9def940b392513d99476. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/MYNS11434690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65268e9cd2fc459304d70a62fdf99e30f6e7f1299d4ea98c78663a365792ff05. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/MYNS11434691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc89fa0e15369de72fdd68a06fdf43272cd4e5bc7eddd4dd39731b3961aabf7e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/MYNS11535843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e8073033e634665fd9d83f074ac14daf49520dd7fe56221e6e1df450b3f732. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/MYNS11535846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49041e2417841fa1db19fdc6e1ff4a16fcbc62de2eb8c825ed06e4132d37d4b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/MYNS11535847.