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 0x585df3a0cb1b802c88a0ec7ed81ec47095be3c990dc95c9a3a8895602974d97e. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e47d2d62-4f3b-413f-bf13-8d96ac11999c.json and https://artists.proofprofile.net/proofs/artist/e47d2d62-4f3b-413f-bf13-8d96ac11999c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
スーパーD&D ～完全にリードしてアイマイミー～ ／D絶対！SAMURAIインザレイン
Super D&D -Kanzen ni lead shite I my me- / D Zettai ! SAMURAI in the rain
Super D&D -Kanzen ni lead shite I my me-
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 0xbab063c2736fd107982c1a604f7c55581e60f679692d50b814f508f2e52806af. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPZ921801864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66cbd37470f51f1626d73c7fe46074e9e26393d25f109c944a799014dee82ed. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:01:59Z), 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/JPZ921801865.