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 0x600d49710bf31ea3d5f36aec2175c69721a055a10a884f81178826ca1a101e12. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62cd5eff-9252-46ab-899c-060bfce3b490.json and https://artists.proofprofile.net/proofs/artist/62cd5eff-9252-46ab-899c-060bfce3b490.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
水星 × 今夜はブギー・バック nice vocal meets Yuri on ICE
水星 × 今夜はブギー・バック nice vocal meets Yuri on ICE - CM edit version
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 0x4075cba5d53dfe9e0698480dc9150543f9dc9586d9ec97c6701fe235f6ec5087. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/TCJPT2269249.
水星 × 今夜はブギー・バック nice vocal meets Yuri on ICE - Instrumental version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641f6493e62a12c5b5abf1a0fd0bd9cf256ce13a461a0e15fc0cfb89f400740e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPT2272592.
Noisy Love Songs - MAISONdes × URUSEIYATSURA Complete Collection -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e30e46279b80f10b223826f2f702f6c7d6b0124d38140af0b5c5592b34f592f. 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/JPU902203509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e30e46279b80f10b223826f2f702f6c7d6b0124d38140af0b5c5592b34f592f. 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/JPU902203509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e30e46279b80f10b223826f2f702f6c7d6b0124d38140af0b5c5592b34f592f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPU902203509.