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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadeb4aac8ee30e35281322edd8dad87dc5ce318d7a9f0c2fd691f2f8dbca5567. 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/8324155a-2cc9-4cc7-908b-80f7ce30f9ee.json and https://artists.proofprofile.net/proofs/artist/8324155a-2cc9-4cc7-908b-80f7ce30f9ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TVアニメ「蜘蛛ですが、なにか？」エンディングテーマ「がんばれ!蜘蛛子さんのテーマ」
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332db9aff04fe8df29238965be4046168d5c36e47cca5d56096e1b3be8717ee0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPD732000453.
ENDING THEME FROM TV SERIES "SO I'M SPIDER, SO WHAT?" THEME SONG OF KUMOKO
TVアニメ「蜘蛛ですが、なにか？」後期エンディングテーマ「現実凸撃ヒエラルキー」
2ND ENDING THEME FROM TV SERIES "SO I'M A SPIDER, SO WHAT?" REALITY ASSAULT HIERARCHY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c4a3e30fb7aa38b8a85b8374142b51201117c5f3e82e7e61dc2aca560f1ab5. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPD732100126.