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 0x15b1896aa35639c66efd3064484fbefbdabc7afc99de63df060419b9192156be. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df934c56-2675-470d-9f18-2a9aebcf9f71.json and https://artists.proofprofile.net/proofs/artist/df934c56-2675-470d-9f18-2a9aebcf9f71.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x5ce18b2ddda86076a465424dfdb35484bb32ac12dfe8aeafe7873e5d5294b690. 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/JPM902200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4dc88f76481c6c1dbf1314852ab3405e0c01ad0a3f992de9f9f7b27ff7e985. 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/JPM902100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5e600c7c95cd7d1083abcc3577e485a8885092f72f900563eb49806a8c5b9d. 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/JPM902200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c1dbd6f74f38098aab7d3cbd46cf2bf1c1ab1233eccf3075f630e7f4037c34. 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/JPM902100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf245dcb7ef04ca5cf2e8dab0580a51db9e88864851e881d48000cd076bfd17ff. 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/JPM902200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889e645b8f47efa2f57944b1891318da77adaadd9b41298522778bee8626101d. 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/JPM902200117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d52ada259852632cecd9a1244c0afc23907a4a861c78c39c3b26b2a7e519e78. 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/JPM902000166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b45c5ec346f3ecbd4364c863bdd0de17334e1fc419398354eff613619b849d. 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/JPM902000167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13140e467f996fe04787c00e14ddbdc703f13b2eeb2011a3d36f6b296f8cf48c. 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/JPM902000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abc30f1be44f8282c368dccfc7e229166e2e4f6f9253ff9e4f7ad8ceae401c0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPM902000172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320db38305d6732f6da587ebcce38719140d301d72e6809c44b22711dba1494f. 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/JPM902000173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b13341ade11d91cb1478ca28e5ed706bb0fe115e91f0850f50cc70e4536fc6. 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/JPM902000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875eb7ab36a584de047f2612cb6bfcf44ff6e6b6bd487768d9a1692ccfefc2d7. 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/JPM902000174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d33d6b1aa4d45a626ef80d4e2a33726164dc47881f8a80ba5b37f6241256d8. 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/JPM902000175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b9b28a1f11a6279b27286323464a884cd4c6f89ff6ce5a9c82af3303533531. 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/JPM902000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21f6b352cda4164e4f79ec611844d588df2fa8a385aea18a7f89384e2436589. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPM902000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b91d4bb965dabfdd1bd977bac82a91b1dc78d47d330dced4434fc1f0f7c6a7. 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/JPM902000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce540de9301ec0b7227f88bf326d54799027f563dc97d66b052e42b161d5b1be. 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/JPM902000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d9365d225405d1bce7a3b2810813c4171e1ae182e41ec117e8a0109748a338. 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/JPM902000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b9efe6d1d34b6bc61c0d7ded5979ee61d8c8fba376f7edaf967372a7c75d69. 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/JPM902000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f187cdbd47916101656be758435f87644951cf0a9e4ba203da576dc3bf1b52b. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/JPCR02403680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf245dcb7ef04ca5cf2e8dab0580a51db9e88864851e881d48000cd076bfd17ff. 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/JPM902200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5e600c7c95cd7d1083abcc3577e485a8885092f72f900563eb49806a8c5b9d. 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/JPM902200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4dc88f76481c6c1dbf1314852ab3405e0c01ad0a3f992de9f9f7b27ff7e985. 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/JPM902100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c1dbd6f74f38098aab7d3cbd46cf2bf1c1ab1233eccf3075f630e7f4037c34. 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/JPM902100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b45c5ec346f3ecbd4364c863bdd0de17334e1fc419398354eff613619b849d. 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/JPM902000167.
ヨエツアルカイハ1番街の時計塔/インカーネーション
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b13341ade11d91cb1478ca28e5ed706bb0fe115e91f0850f50cc70e4536fc6. 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/JPM902000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13140e467f996fe04787c00e14ddbdc703f13b2eeb2011a3d36f6b296f8cf48c. 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/JPM902000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f187cdbd47916101656be758435f87644951cf0a9e4ba203da576dc3bf1b52b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPCR02403680.