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 0x01fcfbee7d0a9fd9ca12fa3b7e8232084b3ef10d36a3da1923e246715709246c. 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/af91ec25-78d5-4241-81bc-be0c8b2fdcfc.json and https://artists.proofprofile.net/proofs/artist/af91ec25-78d5-4241-81bc-be0c8b2fdcfc.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 0xe3aa15364b7d07208ea455150a1ad2994fb99597b66b978fbaf39efe2cef370c. 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/JPU902200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc17c6eb35a500e245f8841d9d204f6e52755ce45eb2f1c20ce3bf1465787a0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPU902200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553686318d0cdd296fd9c2c7c994ae01ae335ec2428f07fa62ca7e53bf9af3b7. 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/JPU902200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7e038b054e89f7a325438dd4585a7e8ded9ccb16a3877ab81dcfc198987461. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRB462100844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fae4174620e50218f1a99baffeaa45e645f1054b184eef92db242aead9d5803. 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/QMDA62370073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b5a605d81562e6b4c8ad2f6151deaed01406bd5c9887f33bc5720369fcd2ae. 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/KRB462300556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdced55cd45f05d027db9b2194a6ba6a443876635fba9a7fa1cffdf617e48958. 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/JPU902300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9e574f02e7aabaa6ec917afee09478891a6902195c49c2f9b23348387ad31a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPU902301519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d61c2dc765b7cc7fc319d927c0b10087e179fbb47bb39f53eef71b3eca125f. 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/KRB462300557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb472b2ce3ab528c45c57cd9b6a5ba4604331fd928c22dff51ba31f423a302c. Chain 2 (Bitcoin): anchored in block 957304 (2026-07-09T12:19:34Z), 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/JPU902301521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdced55cd45f05d027db9b2194a6ba6a443876635fba9a7fa1cffdf617e48958. 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/JPU902300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f905af493fb98cdf91f34f44993fe1a0e12d6200d7a8a233c0630376780613. 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/KRB462201288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c94641408623d11755f649f1faf4c7307e05229ef27a1fd4c43d6a12d3b23c8. 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/KRB462201289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fad96a482866f5af316f9753a2916f9af3f60cc757bf6b8f94da53337986e96. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:39:34Z), 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/KRB462201290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5efa0fe2bd609b146024493c5e369e8cf11c95ac52175c9cf94a73e6452b437. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T17:03:02Z), 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/KRB462201291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f9cd3ce80cf7c230046aae72c830030d1727389b7fd13f5451f363ff569564. 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/KRB462200701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee57f8b5f6bf230ef438160a75895be55c96db1ce810c91eae9826af5dfc966a. 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/KRB462200702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3d20ec226df2fd25140d48e5a4a03395f9fd79e9c5bdfaef87b3d20ae06ccf. 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/KRB462200446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abfa9a4a33eaa9b25ffc75a2ee0ae4ef9e9848414b6ef09ec650b79ae5da6b6. 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/KRB462200306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3aa15364b7d07208ea455150a1ad2994fb99597b66b978fbaf39efe2cef370c. 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/JPU902200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc17c6eb35a500e245f8841d9d204f6e52755ce45eb2f1c20ce3bf1465787a0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:46:02Z), 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/JPU902200024.
Red Light, Green Light (Japanese Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eff4ecfb8174784f6fb34ffcf8faf42f1d0e5bdfbaaf54f22b6cf903d7ebe5f. 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/KRB462101371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7e038b054e89f7a325438dd4585a7e8ded9ccb16a3877ab81dcfc198987461. 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/KRB462100844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5878c9ec18fd32b424e77a06601fd845801eb934d98f05ea09bd1a8693bd0c5. 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/KRB462100959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6627fafa676372d1ab3185f6bdee97a527c7c68316b2c39400f67e27e820e4a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRB462100960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19de882f67951fb1c46000b92c3f15d5240b467961363f1de7349ca270a3fca. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/KRB462100961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5070d798fa830d29e28fe8e757d8b95ca6bd455679ead1efe53baebaba8992d8. 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/KRB462100327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f373e8425bc1f477e34d27d462d6f546caafb793ec3b9d3948e7ca38b84bfe. 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/KRB462100328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddd702ee9c04306d46e5117cf1b81092b41a9ee5d98bc08b114f3f4a526ad65. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRB462100329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe12b1f63ff47154917344b9d9f264092e7000d163752e502e417de2533aeed1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/KRB462001250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d5cf9cc6af9694748bb5efcfb8e8f32e3c8c39579824cb87582419fad1aadc. 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/KRB462001251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1528ec47d31dcf75b043433785ad0a76eb096b3e36c451a64db19d2c467d86f8. 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/KRB462001086.