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 0x50ba3b0ff3fead94bed2100817fdb6b0c4dd55273abb2e3bb74d1694c4fab55e. 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/3bdef9fe-c206-408d-b155-7bb1a215d5f5.json and https://artists.proofprofile.net/proofs/artist/3bdef9fe-c206-408d-b155-7bb1a215d5f5.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 0xc9dd08756cd2f78525fd899fccde92647ddc1d5c0a9e730eb5c152429a926daf. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:56:09Z), 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/JPBV09105920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e04e333b9fa3541fe3806f527ad78554e6adfc9f5facedbd9a06d7eddb923ac. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPBV09105930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce3b961104d2fed97a11163746b210b25fa57d609e3b5204e431de5fc01ef94. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPBV09105950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c349a2a92a66fbbdefb68aee58c0dd6f451bc872db079a7ea1a2f7a960fe320. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPBV09105970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b2c77c5f67f8549fbe5b1433ed677132630551cb34780604de1d32589f9a9b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPBV09105990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20d8f02f6a52047f12b756205e971d5df9c8aae84825bc40b8270c184b25541. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:41:34Z), 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/JPBV09106000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5723f07b4d9790bb24e5c55d170d619a026b0155977b3e85ce9cbc4bdca01952. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPBV09401572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9d3952843ec8afeab75e07ac7351003dc7973100ffe0af4665bbc6d8a44565. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:40:24Z), 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/JPBV09401574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937568fcaed548181d7843d40a6019f1a4dc17d825d4e118095da2b059ad8140. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPBV09401580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5c20163f26668ac19aeacfdbbe0497f74b78c60cca4b7573fd75b0e6902ff7. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:15:48Z), 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/JPBV08100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51327fd163c48274bef8d57ac5d8994c2749df3a85e82d640048b2a9c755dc01. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPBV09900420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecc57a3fef9e749826508be2b3cfb53f355b2204c2ad68bad22d23b9a2d71b5. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:59:57Z), 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/JPBV09106020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ce33ca4cfa369813887c6d54b0e1a7ead52e361c32a47f5ac47757e0841d03. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPBV09106140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cffc924e74fe06f21466f6947511ca1f51e48de5d63e5e522bcddf6c427e19. 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/JPBV09106150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb885dcd53e054747b73befd438b656ce39b53371efd63b44b2826fd8fa32b0d7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPBV09106160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1394603a404dcef6d543ac26266096df753dbe5b35a84bbcf234e9e566c811f0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPBV09106190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11e68402ea511dea61b89ce6e8eb10486968a0777c20d4c59bb92bc00e9bc37. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPBV09106200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee5bb7a70e9706ddb47aba58b34c319f4ca1c449be767a17ccf18346fd84d02. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/JPBV09106260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21957c7c267ef232149a2c4f84a2578c40fa11a0c88d7a963cd520d3fd0ab92. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPBV09106280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33fba9698e856e7affeea39c712beda30b452079e96b4302c79176c1d502d7e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPBV09106290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c06f489e19a4798c3d439a1c357dea48df0f9d4c7a66dbf6735287ab7953483. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPBV09106300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc349cb8e1054c30a549ae1ff65e8f2900f2de27faf1dc1615fe588018868e7b2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPBV09106310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b1bc94eac28a8878723eee28c55b816d8797ef393e17dabfcf6b703fcf7f67. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPTO09301060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b1bc94eac28a8878723eee28c55b816d8797ef393e17dabfcf6b703fcf7f67. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPTO09301060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6bdb320994969a4ddfdbc803caf289e91bd778a7f51c4540419914b58e9908. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/JPTO09301070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288cc9c015e013c42ab92a51a3fcc65c43955c474c425d59f0ab3dc6a6162d97. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPTO09301080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc852de4d3fa40091667bc6b9fb00a2a0254f38449c786cf035a9d70338e21328. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPTO09301110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1b84f9ae18d27017202adf7ae3aa9188a013a03cef81458fe03f34c8b5b75c. 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/JPS801954892.
山口百恵トリビュート・セレクション
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43790af277bde92cf6e788e19b523e125c7f5a943095f74641d94deea36cf7f. 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/JPP401200615.