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 0x6dfc1c767356c9c56fa66e241585d6e4d5c8a83e895b8c2defd7910525d6e4de. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/def7ba8a-daa6-456f-8b7b-0af40aacb8ca.json and https://artists.proofprofile.net/proofs/artist/def7ba8a-daa6-456f-8b7b-0af40aacb8ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
人から嫌われるのが死ぬほどこわいだけなんだ
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 0x4f0fbfafb76e2877b97a599bc5028f5048c8c69980856e411ab81ed52868065e. 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/JP92Q2323078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630352d818f775d7659c91d529fa3f3dad83423c3eb24627b5897d5c21e92a11. 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/JP92Q2323079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e88a11467443566227ca141f7ea694d25da299e2a5cd315138bce63bf3fa66. 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/JP92Q2323081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aefd9a6a3ae0eeeeed453e16e8cf0e4776065ede5055fce92f40a395c301ba7. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:29:17Z), 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/JP92Q2323083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6382c21873e0b9d0f567a8aca4477e408d97f42ef1e7f66f5c82140a95ff75. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/JP92Q2323085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a640e5330bbe7e5e8a19c723dd4ef9d543a5e83bdfaf4192f7fdcfec875d5b4. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-21T16:47:54Z), 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/JP92Q2323086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7b139553ebacf53cd7f22c08574773be6a255cb6ae8580bde077d045c4eff2. 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/JP92Q2322957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3a4c0aef5569b12a8248e3b174cc033a3ebec543f0e69cc8a1f3c57788b22c. 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/JP92Q2323088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7939b72a81f2bfd8251bfcec538f16a779a92117b000ba60823310a69d488158. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:05:00Z), 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/JP92Q2323080.
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 0x5b5f215deccee5425838fec4d0843106aee625581de1a800048a8fb88bd08731. 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/JP92Q2323082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb4141f673885126cc76e839d8b4805ffcea2768bd74f08cac8b155b106303b. 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/JP92Q2323084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa464b13005a667aaf530f257667ef4851a65482617bd1d2d7da8303213f76e. 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/CAGOO1913331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b52481f05f9b861e1c1a1db4b7c42e739e886a38934bf46e0360b50ce578e15. 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/CAGOO1913333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52e39dcc29143661454b5a82e17de9d9320fdd3c0653a8af43c400cfc234b9c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CAGOO1913335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b0b0489a66edf27e462591f8e26c6319f2e2a96a2bae0fb58d6e9986081f70. 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/CAGOO1913336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1da29dac8446445b12a9f3f79efbd8d3f9142bcf547cd8c7867fcd4e444634. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/CAGOO1913332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c7697be8cd623fd14d2980ee04cd56cf3e8d18947cea06b4fa344fea4b5abf. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/CAGOO1913334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79a64fca812f942663202994d47010a7a8218a6b962aa4b93d8fff526356dc5. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CAGOO1913337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f3f07084652e6fc6787238302c88562c765ef3c80c1572caeaad8675a314d5. 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/JP92Q2425318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4815db5de8eba07f9f88d7a64bff701edcc4c20646cc5f4e5fb45b964d1755f3. 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/JP92Q2421059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c2b38c1ad401b8aa99eb7fd26dbfaa26df6c8904efd5f317078a6a228baba9. 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/JP92Q2416934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c0f402cdc4772701541b7d750f4ae30d29966f050f29e7212346fa71bae07f. 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/JP92Q2412019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea3e0bf67c1cc92b86c8005e1d44bcce646a66cae10a8cc29879fc3c684e1da. 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/JP92Q2410267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d06a88cf265d1f6c5bd71083ac41b529169028b90a23869ece8c5b69cb612c. 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/CAENV2044797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5f42930182f74bbbea0456ca33a3ae5932f562c9a44f767d4308e51b90773e. 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/CAGOO1968461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2343c247c0e37413a7fc061703ddafcd4e080121f8af044bf932ede7932702d9. 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/CACWV1846369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c74b2f57e8bc70298da3f1dfa74c9d4181ee426d4bebbcde9b6a363ebfd0c6. 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/CACWV1846377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2814e03c8ad92c91cb44cd165d7da8c7e4c8dbf6c22047a48f837e99bd164306. 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/CACWV1846372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093ac6dbdaabdf0617ceacdadb2257ecde9837cc045ebd1bff99a431792fcb2d. 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/CACWV1846375.