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 0xcf4a97ba3a39c7cad271c53afdf5dc0a6bd32873cf7bbc99180f0d06d8fcc4b5. 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/8323c080-fa3b-4a1a-8bda-20a8eaf2eea3.json and https://artists.proofprofile.net/proofs/artist/8323c080-fa3b-4a1a-8bda-20a8eaf2eea3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
横浜DeNAベイスターズ・熱き星たちよ
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 0x9dfaa2a89d88b8be31ef44ece9cf5d59b91efb328171386215344b3ebbae2e11. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPPC01700345.
熱き星たちよ2018 横浜DeNAベイスターズ球団歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa21b886e89b5dfa0a996b6dcf3e3d52dcc044fc8d92c207a9e59eaff0139f3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPPC01800260.
熱き星たちよ2019 横浜DeNAベイスターズ球団歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cba7c8c8dacb8c1faf2d05211407c124c3f455127838cb7830470e4a535f4f. 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/JPPC01900271.
熱き星たちよ2020 横浜DeNAベイスターズ球団歌
熱き星たちよ2021 横浜DeNAベイスターズ球団歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179932b51b4415743a6df8f4d3d46e0efbb778f6b1e925cc682d1e27df1fe3bb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPPC02100703.
ATSUKIHOSHITACHIYO 2021 YOKOHAMA DeNA BAYSTARS
熱き星たちよ2022 横浜DeNAベイスターズ球団歌
Atsuki Hoshitachiyo 2023 YOKOHAMA DeNA BAYSTARS
熱き星たちよ2023 横浜DeNAベイスターズ球団歌
熱き星たちよ2024 横浜DeNAベイスターズ球団歌
Atsuki Hoshitachiyo 2024 Yokohama Dena Baystars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e753caf317fc18f9f80cd475dfb01633dbb4d4fcf6732740eb3da1b9908a5f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:53:02Z), 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/JPL542500259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a25b195985c8213dba5d6094dca08bfc46c4182cc633306a789c19d5e54171. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPL542500260.