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 0x0471f8bb1c8a8ae7e5f81fa7573f04f622767215167ab24cb031c87fa0b2019d. 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/4e5b14a4-aa72-4c36-97f7-2599a7756ae1.json and https://artists.proofprofile.net/proofs/artist/4e5b14a4-aa72-4c36-97f7-2599a7756ae1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
シンジュク・ディビジョン 麻天狼 Drama Track1
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 0xf5e0a574ecc648a7c232ba56474a3111591503f402f05b9934d6648ac7d0f6b1. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/JPKI01717606.
シンジュク・ディビジョン 麻天狼 Drama Track2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72e8e4909670696998524519707eee0bf924d6649965f05487e2b9c10697643. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPKI01717607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943b7ed2509b1f25c0f9c9dbef097760499f996dfb0ddf995154af8fe3e365c6. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPKI01910234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318dd0905462115b9cedbfc2c4003de83e2e938f9309dd2d25ef21902cd2a0e6. 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/JPKI01910239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6000a2b168f7cf1dcae319daea145096815de820d7d4eec4692ef957b038ebb0. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPKI02011803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30cf2654b1496ed1dee1d607e79776e76bff5d8dd860d287e78bac2991908ce. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/JPKI02011801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca2fa2d97d0fe4be6aeb93253407e6f3a5618cfd368a7a770fb0b14c837fce2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPKI02011802.
ヒプノシスマイク-シンジュク・ディビジョン【麻天狼】コメント
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896112fe328c482291f75eeece4a70969192f77cc116d3c39c9603efcfe3f362. 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/JPKI02413432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c250dc9cacb19fe0c13a82a42c7ced4717fa43db495c12b090bf1735495e5d. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/JPKI02510075.