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 0x0e8bb732fd020f7102621282593fdea42117e56db4fd5ce0b16caea8b7dd9f14. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70889105-2eb6-4faf-88eb-144c872c66b0.json and https://artists.proofprofile.net/proofs/artist/70889105-2eb6-4faf-88eb-144c872c66b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
THE IDOLM@STER SHINY COLORS COLORFUL FE@THERS -Stella-
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 0xbd3b761d486a611905093d172eeb4f002dcda207d77b04d9ae050f53725c19f8. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPI102002098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82879017f724c00934b64a363571f9b019ec7755b7185f9d5e1bae03b5b8028b. 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/JPI102002104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc59472e39cc293f3ce55a7c6a1a54ab9abd6bf1079e490be7e7ff055b4ac1b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:35:01Z), 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/JPI102002100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8f67fa9566b9e0d10291cdd6a053abf2b642b8c91f892021b8b350f9b4a2d1. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:52:38Z), 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/JPI102002101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c39f71f7b5e59fd8a662ce65dd06a8aa5b27f3bda84f289cb4be838b0daa212. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPI102002103.