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 0x6f983a70622d7532d7588ce6919bff3730fe617cdeac564a7c70ffad2db6fb47. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36830b03-ff89-40e7-875e-ee0f36cbcac6.json and https://artists.proofprofile.net/proofs/artist/36830b03-ff89-40e7-875e-ee0f36cbcac6.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 0xf8574273edfb8499c5c5ec331063e67dc1d7811e9da83cfb9a24fc220d2007b7. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPR502035705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8574273edfb8499c5c5ec331063e67dc1d7811e9da83cfb9a24fc220d2007b7. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:55:28Z), 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/JPR502035705.
華Doll* Anthos* -Behind The Frame-LIHITO&KAORU&SETSUNA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57c90d6521dbbf72d8bb0d3c1948b90f2f7733413ad35e03ed44f8a4e9aea6e. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/JPR502205825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57c90d6521dbbf72d8bb0d3c1948b90f2f7733413ad35e03ed44f8a4e9aea6e. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/JPR502205825.
華Doll* Anthos* -Behind The Frame-LIHITO&KAORU&SETSUNA (Full Tracks)
華Doll* Anthos* -Behind The Frame-LIHITO&KAORU&SETSUNA (ドラマトラック追加版)
Anthos* 2nd solo series -Air Quotes- “LIHITO”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cc121582d7d308e1b5307035432074de0a89954fa92bd8f76279209789bc95. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JP92E2300761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5142dde4eca2c3801c96347357ecd632139a05ec85c24f1753a3298dd1202c99. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:59:14Z), 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/JP92E2300762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cc121582d7d308e1b5307035432074de0a89954fa92bd8f76279209789bc95. 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/JP92E2300761.