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 0x11a1800c4db1992668c128bae5af3cf88addd2e8b68017513826f32da086f320. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eec6c0e6-c615-4ca8-b4c6-9249772de6e0.json and https://artists.proofprofile.net/proofs/artist/eec6c0e6-c615-4ca8-b4c6-9249772de6e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
レンドフルール オリジナルサウンドトラック
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 0x7554e9591104f7111c8e28e6b7e2b1becc568da42b9607d9cfa245a45bfaa44d. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/JPV201700194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa810384b56232866c3491b7664bedffb8a0f8fe086b84e960e18395dbb65c79f. 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/TCJPH2517202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571e79eb65fe4d47493bbac59db747d124c3a4093b893652ab0faa53541bd6c5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPV201500519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017fb0b4f2b34897d0c4d2100d1dd1c59504168c70ee2efa45ea4b98deb7d16b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPV201500368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4f528f408488e021a13e897183ab0607af5a5ace6ef5016bfd1fb8168077a7. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/JPV201500601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd7c3e6210ee4fc3a06a810f7c2d3562cb2be778926e25bce209a66c176a744. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/JPV201500600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0b898035822c6b94c8b380a3228f0a5a93bbda34687208aed8210fdbf33e8c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPV201500369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c71c06b6817205c1a81d56068a91148061f16f8d39212818521140c5a9f27e1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPV201500518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56edee2cfc1bb55a0cd5391f7b9d6f00229e733a7620952c9ea64e7a4746242e. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/JPV202100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa16917c19c8f0b3250feca587f3dca41b59e8a5339bd4c0ce3460e520eaf6b0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPV202100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a09e9f9e4ceced5fa0d012b2b78e417158bb41df34a003fd655fb5360f3e8c9. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/JPV202100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeaa41043b99f7b40d339cf3dadf73973cf9332f1021a642044c8d48de511c56. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/JPV202100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571e79eb65fe4d47493bbac59db747d124c3a4093b893652ab0faa53541bd6c5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPV201500519.
Cineresarce No Nagai Nagai Ichinichi -the colors of wonders-