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 0x2f0c19851d6b3f4345d860ef7156fe7716785e7e6f6bde93213d7fc309b4f159. Chain 2 (Bitcoin): anchored in block 953780 (2026-06-15T12:02:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d47c7131-8737-4ff2-9fc0-69ee3386ed80.json and https://artists.proofprofile.net/proofs/artist/d47c7131-8737-4ff2-9fc0-69ee3386ed80.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
パリピ孔明 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f982e36a38f1759832bab225db3686ef9257f75dc440f6329845c75f0f39c6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB602201446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38bcf822b182db3c49fc729d7f0521c2060104fb375c5b3b98e4afeeb9e74ea. 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/JPT552200488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47224ed2c6ef27a95176ff3b288808083a58834ba5d1d7a32f32f28c5eab0ef. 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/JPT552200490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf345998e1e4ac9c98fcd0242fe77454c37b3f7dbfa45e78c226b11aef834536. 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/JPT552200492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41e76f195a79a3dbe60fd9ef17f45b28c547585eb82f577ecad0478a7d73374. 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/JPT552200495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dbff5d364433e94bc8933127751eda67a87555e7d1178c0e4ace8c3b095d29. 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/JPT552200498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48a7f6a8cf89a0cf9816ff4a5bc55b7b754c9f38915e858227768b4e47d1d1c. 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/JPT552200503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173ab051bd0320f4b955e00a620253ac1563992c152be192ea97c06f4ed186ee. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPT552200506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42725d5c86415e30caa9c013bf21b942a77163922a4280fd44b50a496f1bd0c. 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/JPT552200508.
スラッシュスラッシュスラッシュ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79be3157103e75ec400f2e808faff123054740e7571f4c9be30794e4fc07c692. 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/JPT552200512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c62fba10db9519f85d3c77573407e815adaea5eebe48edd2f3dc8c7a2b3ae2. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/JPT552200514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6379b1971bbe2b140d0ba16beb183ea7d012631bd45f0be1cfa08857ceb0a9b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPT552200516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10df63d1e2941e63c1f0f6697ea9a7950189d094e6a87e4419999b553ecf3349. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPT552200518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153adf3c443f17aa682f3f75d4ba159b36f8eb3bab453881f005f75d710c178a. 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/JPT552200520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fa1ab7c5ddd1a3190eb7f380d0a97c1b03656f7a996b8b81c009ec6b1a7b20. 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/JPT552200525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83110ff4152fe34618173a191cee25a4198f1291bedbc940c349f0988450d97a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPT552200526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc32341df6ff4d6eabda21f47d6f8a408b4d5b316079b219c666f5f4e8c95b7. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/JPT552200489.
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 0x47e03e6f38348cf33b9df7d6582b3855cdecc930e9208642c782b5a25c1b48b4. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/JPT552200491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8633208ea009aa28fe765371ac81d9eefd3107b551f727eb76d5e27d4bc4c71a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPT552200493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a27384692805b0ab5531e20c4a14a6be1687a69cdfe34d25534c0034f0013c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/JPT552200494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0deceaa03246438eb3736018c7ace0779ec06103447fdc6c0670943e9be250. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPT552200496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3aab4b42e699e8f67c5625397a339157ac84b79938b33759cc64c1ff0a2596a. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/JPT552200497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478fb38e13434be85081f21edece24b4f31fad3683caf6caa903decf24d796d6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPT552200499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b02112f93b9e1928443a4b275f191b9223f0e4bd06913441a477d09dfd072f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPT552200500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b786b7661160004ce9b53cac71b98535915654367254d46fc3f59c920006ca2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPT552200501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36f031d2e439383b75b4b985d771bd75fdccdc931782b42f34c663b257b13f0. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/JPT552200502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e345c1cce8fb2101de29649c8016ac8ebf4e1f968affaeb8199173dabdf277. 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/JPT552200505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92e578c76c37709aa67c3da4a4af8094c7270ea8cc3af5de0d26a55af91079e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPT552200510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93f199ccbbde78b3ba9fe551891505bef3ee74e8b847f9eae15071b8184282c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPT552200515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5480eed23c2517ea706aeb8511d3bfd8cfb8642117a23b42e51d2c0836c4add. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/JPT552200517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a92efb706fb43f3bd1a98644e681034af2aac2b90792c2e3796ee57765515c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPT552200519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6cd75e1ef7a35c7246648bceeaa5be7896efac6c1c50a329167a40365d671a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPT552200521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b607340e661afdc380ef6547ee9fa42dc33de0b22c096018931896a8ce6ab3. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/JPT552200523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765b919fd5c6a75c94084eb651626bd4899edd6a818534ba4ce9387dbf3cf6f9. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/JPT552200524.