1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x617450a9b517a330a194ef5f3dec7fc7d7831528c7f99bd413dcf05c7ca503fd. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6cfa3126-a8fe-4a53-97f2-f94035d69b18.json and https://artists.proofprofile.net/proofs/artist/6cfa3126-a8fe-4a53-97f2-f94035d69b18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
すべてのこどもたちは自由をめざす
Subete No Kodomotachi Wa Jiyuu Wo Mezasu
世界は君を変えることは出来ない
世界は君たちを変えることは出来ない
想像力ばかり育ち過ぎてどこにも行けなくなった
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 → block OTSBitcoinBlock must exist at that height 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 0x8f26f99b9974f181370ce01abb355a677c3feb5302dcc83b4c153e83f1064b93. 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/JPG102501112.
どんな言葉もただ通り過ぎてゆく
行きたくないところばかりだよな