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 0x22dbf78052ed3313daafba48ecd61e2f0ce3f1a989993d6f5633947c347440a0. 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/65023ae4-797e-4db4-bb40-ecc7a45a9dcf.json and https://artists.proofprofile.net/proofs/artist/65023ae4-797e-4db4-bb40-ecc7a45a9dcf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
「創聖のアクエリオン」オープニングテーマ 創聖のアクエリオン
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 0x732dc2b6143a13f27aeef497df7ca24dfab95bfeba0474dba7eda1117f1c3812. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPVI00509700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d957f1567e2be289086aade042df85b6996b8e8a18d434a89c5e3a375a23d47. 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/JPVI00529540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a649ecc544d9bfe285c8a46954fe9edae9068684d3dc34ad56f5bb6e7276b1a. 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/JPVI00516600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2b946d7f519ef0cd3c8027fd440ece18dedccb9b4d1c608acfb422e27797e5. 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/JPVI00523760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b3963acac8c83e7a8849ad845bdbfcffbcd7a967169612eb476ca336153654. 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/JPVI00509710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe041c9e87aed4e83a8e14c5435a27a8b7a965bad9d16ab12b84ccc2ce534dc. 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/JPVI00529600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732dc2b6143a13f27aeef497df7ca24dfab95bfeba0474dba7eda1117f1c3812. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPVI00509700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a649ecc544d9bfe285c8a46954fe9edae9068684d3dc34ad56f5bb6e7276b1a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPVI00516600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b3963acac8c83e7a8849ad845bdbfcffbcd7a967169612eb476ca336153654. 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/JPVI00509710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe041c9e87aed4e83a8e14c5435a27a8b7a965bad9d16ab12b84ccc2ce534dc. 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/JPVI00529600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0a0b6aa74ab66dfed4084d6a06265783f69aa10b3505551b443e33bd5f5ce7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPG751100638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0a0b6aa74ab66dfed4084d6a06265783f69aa10b3505551b443e33bd5f5ce7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPG751100638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a649ecc544d9bfe285c8a46954fe9edae9068684d3dc34ad56f5bb6e7276b1a. 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/JPVI00516600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2b946d7f519ef0cd3c8027fd440ece18dedccb9b4d1c608acfb422e27797e5. 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/JPVI00523760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21902081aa4d539361fcb78c72c63ece12d28faad4ce37958ec681a004bf9c14. 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/JPVI00516450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b3963acac8c83e7a8849ad845bdbfcffbcd7a967169612eb476ca336153654. 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/JPVI00509710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0a0b6aa74ab66dfed4084d6a06265783f69aa10b3505551b443e33bd5f5ce7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPG751100638.