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 0x26da6a70d64d0b2b855288a60430d4bf937d5ced1f6ea2df20fadf22b4bb9490. 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/3e147eb2-445f-4a17-af7e-a23ac7e4e6bd.json and https://artists.proofprofile.net/proofs/artist/3e147eb2-445f-4a17-af7e-a23ac7e4e6bd.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 0xa4fd87495112252844c8ee1da59fe46ce78d88805858a7f4761caffa171b555c. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:30:16Z), 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/JP92N2455826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66914f0cb55e15a119a570d652c89ed497fb086b75708a6c8bb932f10ba16ea. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/JP92N2455828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffb1e683525a2acc345d3a7a4e188afae1a41d33a010d555722a4a14132cdb2. 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/JP92N2319766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5d55a3d4d0c358f29dec7295c4a2e133bb03870af292270bc46f0fdeeb8389. 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/JPB602056205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2332bd27a3f7c5c161943a9e619f6840f14d661c0a045192f59a83bab3bc4b7. 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/JPB602056208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5176050318085eaee406b621d854f82e38d17efc02bb082d73acaec4dfd8713. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/JPB602056211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a5dc376dbff5ca67d7e7a03ede80c23a1a7c6feed01a5e7d76e3b8f8facbb4. 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/JPB602056213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecb1849307b6bf27b3f43584192b903c3e0b5a05ae96de1b1c0683d39c681fc. 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/JPB602056215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9761ef2291a1cb3585157b47cf3a175bd5be166835b11770e6a12dc947fcbfff. 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/JPB602056201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38326167c9f1d2276828325ffa10dae9e925c32c5cc7e42f9d02773c56b43de7. 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/JPB602056202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a199c4b001212961269df42258fd6f77d54f57985b1fc7da645da812eecbe8. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/JPB602078131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bf34b9b8346227745970d10ef1e11bde4939571607eb1af2958699d15c583c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/JPB602078132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41a3f0260012b1767bd72d3b03cf9615f009e1d6e773476228d3e1db01ffe1b. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/JPB602078133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11368406107607fb95a380f581680e62812a8a0a64bb373f30e1f68ce43952da. 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/JPB601896561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060ed6ed57873bdf8a486847f5360b977c9df2939396603793fe2e2679680672. 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/JPB601896566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322f88b1d61dea9646b4f23025d52a2a728447e823838d526038d4a7601e0b46. 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/JPB602188201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0371e8a1928764361ccc01ed1164758eb8c9eccbfdb7ce802b8b91d1774f4076. 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/JPB602188204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bab1ab13d561bcb40817d646d27bfad39eaf839e9f2c2c157c48534b53ffadc. 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/JP92N2245628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd293cff62ba746f9ad4a8ba481a940b1f314f4144bcbe9b1445803e74411d1b. 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/JP92N2245631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5823ed5f2130a3a55b3074f8d198d970a9c2a8df5847a851a4c5246a0aa351. 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/JP92N2415781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c14d2f3406c1d97e16f35930c162c6f1299f09a25b9dac26be812d638f2f30d. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JP92N2443572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf754f1f9fd188cc8e066a86a284ae85bfb9b35fb3c711beb00f538e1b4d657. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JP92N2443573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c10b8191a17b61cbff59bf6e25fac7c56e66369dbd77b0f82d29da5b8a176b. 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/JP92N2443574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9693712ccf02f85655cc8a3b0f2a3a5484df23bbde6df06c8433594e6834584b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JP92N2443575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31d46b6fc38508382e58e7b945b0b63dae699fb05e21068a4c3c4b9c0b409d5. 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/JP92N2443576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f25eca9dc63db656e65ec49fb873113765382ba10fdfc51bf6727028fcc53c9. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/JP92N2443577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d2045227b19988ab29b16702493b62b00a3d6297749d9eafa60abb7ce293e9. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/JP92N2443578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1a815fd0c85fcd5745836972297e130db79eb63e37043dc56458982ae860ee. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JP92N2443579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bc682c28c0734b8626f9ea11d603a0ae35f3f5532c39d2a6f75229c16be48f. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/JP92N2443580.
ヨシカネタクロウのベストアルバム15曲