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 0x86a273a509962c04ea6951b8784c440ac38a745f7427202ddcb9ff2704b14417. 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/0c8808db-0645-4a81-affa-8142a5679e62.json and https://artists.proofprofile.net/proofs/artist/0c8808db-0645-4a81-affa-8142a5679e62.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 0xf80053806fdd1b30f88b5f6ce7bba08239ec27bef417b62f6a6dfc2422b8b828. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:19:56Z), 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/USASN0540308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e21072386a95dce83a39565e3c2a32084a118b2df5ac457de7df0e9d5f2ef5. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:34:24Z), 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/USASN0540310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3836abedc4d371f2227a8eec846b07eabc40e36e1364410943023cad9c29c72. 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/USASN0540315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cff395d1986694a1bd4ba3d7b29528f510ace478fc873bc41ce2170f18d9d8. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USASN0540317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5390fc324a6bd68b94cb6bf61a555766ec769b6b75d90646ca8e9843a2beaf. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USASN0620402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdea60a220d85fe69d0e87935f96d7acf5f5b77800751e879bb5330b7c2be77. 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/USASN0620403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43370582b789eb35b1ce249c11e2989a1bf9600aed02bd705fab57414d4e0c8. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:06:49Z), 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/USASN0620404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7802a1fc000c5be77c49e78243d1c4af5fe9415d046223018a4ad61aeaec287. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/USASN0620406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71de25e1f34a5c1b6e19c2b6a0ad90e380d7e0ead41fbcc6b09444396df704f. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USASN0620407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb211dbbbd46a8d91cd147219f7eeefcefb347761a4436a8f1464f3344176f7a2. 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/USASN0620410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7704b1f24b8a89d7a6fbbdc56900a0cf5276461bf280a9875baec445c4f1d61. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:38:08Z), 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/USASN0620416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d442df5f92868dad566d8900de3f37de4eff51cf3c516cf2223ca27c862d9d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USASN1401210.
Midnight Hoes (Remix) [feat. 8ball & Mjg]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0b7a4c043738b5cad53a2697df7902c3de1461a6cfb29dbe939e58ed6b7368. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:56:09Z), 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/USCGH1984494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe667a133ce5282627a211775d7d6a4dc6a8958157d0639cb47787a82657d1c7. 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/USCGH1984495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a6abf48cf16a9300acf411f7035226ced99042740bcb0b828b360e198ea518. 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/USCGH1984496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83485eb7827f54f66560c2b5f218e1ea06f56f6d901d3e4ac0ab958fe7aa7257. 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/USCGH1984497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf138755449b0b916a8093fbf442570240bd0061a2c760df91a62cc15cd394d6e. 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/USDY41907298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90019cde4c8054f548f9a0141444018d53d1d5a682cb5ab50f4ed57ed7a4fa90. 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/USDY41907299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27256e623884b3cbac4d831b44a63b4bc6a3f4bbf97ac83facba757febb9ecbb. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USDY41907300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831fb15e4e89cd67047ef71de9a23b2af33e1d942fc9b189116664ecff33f856. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:50:52Z), 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/USDY41907301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e2137f30def87adf85d27c5f295aedb2d8bcf42dca8291d2625d407593a852. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USDY41907302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0380c9f46eb8d4d32ff81cdc9df6f4ff204c8b83e5a6167c23ad47b1b1ff981d. 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/USDY41907303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa624cc9cb9dbdc6e2eaf1bbcda801e7254921ce809501101c74a46c918eeb3cd. 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/QM4TW2229174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a5799910e39cfe45a9ccaae4c6f920df641e2c8816567da1bd28e16e39d072. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QM4TW2229175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa9d23c7dfa775d889639bc9e99fd9ff5e501f4e553ad286bb8defc040452e9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM4TW2229176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f7cc544e3a9ef76b8a757149da1897194a863ef09a988629d492831fdaf4e0. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QM4TW2229177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb82bcd7ed7509c30d0b7fc48467526126f3ad39bde9784ac426912cfd66ec6e. 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/QM4TW2229178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e55b97b92e2d6aada2819bfd23d96d2cd83ed9cc522eced91425fdc01f3ca00. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QM4TW2229182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce9a0d8fc90303c936af74a6356d2830bd450b72e89753a0fdf51a7db72be1b. 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/QZDA81826123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099c837d3728fc2b1db3ef71ab96989233c35913502c40cfa79fce48ea405332. 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/USHM91902692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811f879d6e00d6b05141bf5350986e2b2264bb6f1704fdd9ab427ec877d46f50. 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/USHM81707617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4093a653122b3ed9479411ec5931ae9e3898cfc6c20451f61e68a795380b1822. 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/USHM81707618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a9c31b2c6a0b5b6d4f617dfdc293a462888eab842bbff23875ef78b46caaab. 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/USHM81707619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc564ad8c63e60e0398611bb5aaf5dbf4a66cd2e85bccb784eda5786397e1dd56. 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/USHM81707620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7d41269b11c92a5aa19e9dadbfe2c08604165980c592713d93a7e187a5431c. 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/USHM81707621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3bc1a897c59c6fb6defeefa904e1d8ea7ea2c592f71b4f1702058a45124cc8. 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/USHM81707622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44949ac637ebcd0546b55d0f5f5d29185c6e74b381627e0ffb9dea2347111305. 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/USHM81707623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106263d6ecb4f1064e1bb9f334ba2f2d89f296a1beae128e16c97cbd5c6cfed7. 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/USHM81707624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f58911eef22ff3e8abbbbab6edd5fff4d852665a262fc88db03b92c1c50d58e. 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/USHM81707625.