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 0x934e7942cf124214b33c6a4e42bc4f6c3d92cbc26c1e0fa7a5dcf1e78b0238f8. 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/cec6c481-e4af-4e0f-9fdd-cc4c8d941615.json and https://artists.proofprofile.net/proofs/artist/cec6c481-e4af-4e0f-9fdd-cc4c8d941615.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 0xc095fbd31f6d417eaeaaff98d6b3437f93ea0e7ef909aaa3fd9ae9ffc5d74e43. 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/CA5KR1563024.
Way It Work [Prod. By Sauce Lord Rich of FKi]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076b674c3db9678acc5c4cc6243f8c811d889a59589013b0c87a1e8472cfb81c. 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/CA5KR1563026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561017db1def11fe0fb0f69c7473ff5953b5cb44b0ec05b6d79658e23ffa43d4. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/CA5KR1563027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c765ed5fcb89d1bcbc2f439a62b2c0207b1e9f8d73a67942f3c9ceb63dcdf3. 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/CA5KR1563031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44bff92623b97e393a86fc1b4394fcd8aeb41671c7921e220117a60c96d0fa5. 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/CA5KR1563032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3448017550b273aed0c91ff7db4f78d7bdb5ca600d9b3417420cdebe588554. 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/CA5KR1563033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2869e170022db69859fd91d4aa33f8d85da2337b98d54e314f915117ffc4bbc. 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/CA5KR1563035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74dbc0f7a2160469dd6355b75e3df46fa252c4c9ff9c4b7d3a45dccc8b22450. 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/CA5KR1563036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a6e48a34ed7468426b9ef11ecfcbec9661bc5b5a28db650281db41941934aa. 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/CA5KR1563038.
Soprano [Prod. By Southside & TM88] (Bonus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604979bf390e89e9c2cfe4190aff361d2f8ffeec70ec00fd8f0a71f4f007cbce. 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/CA5KR1563039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98dcb3e92abb3986b6cc330a6b5c1db8198dded8c59fbce30e51d3ca3c1acbf. 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/CA5KR1563025.
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 0x83fad406970d15111d0366878850075f6263bddf6b5bf1726d899b61a43dd0f9. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CA5KR1563028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29fc3df72caa0a7ec74a3f09a4ba60575f14c856bad1e340bd2db073502f43f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/CA5KR1563029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4686580c34edc4fe47ea70d7b3d4e3348d8151f312cafea608f568b9b79a045. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CA5KR1563030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577e4e73fc2d279c1d546a523d72529ad2ee8a28dd07128d6ed63bf7ef0f312e. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/CA5KR1563034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507e0c75fa656f626f52254703f1ce9a8bacb85eac70417fbb4a601bdfc0ba28. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CA5KR1563010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9308d647afcd803606829d9eb29f991ce7ca5e89d5f3f2e44b3f56c2b95ca2. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/CA5KR1563011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ee4e9b547e8cd33585ed99eea9e3d9c4e8d712fd1347edc652a173aa6ef550. 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/CA5KR1562997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9630f9ecaa68051caf006b9ca45be56bb9fc109d0ea446e1a35d7e58aa514070. 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/CA5KR1562998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52511b59dbb039c803883ab819488bffc46308e8f4ef5e31e800a8ed9e5b96a. 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/CA5KR1563000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf215e0a9730c36693db9f53772cb4310bd020115bdb61b14d2b21d5eb160e014. 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/CA5KR1563001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77180304803c65db7d497b6bf0d96a8e077fd20db3d468aeabc2b14bb55804c9. 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/CA5KR1563003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d2299ffe189f2c26bcdb6a261503008b64bfa64bb7e88ff375195556eb405b. 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/CA5KR1563005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4362ffacdf2947cd04d0eb8a6425ec3a2cff98890965da9306e734e63af6bf8d. 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/CA5KR1563006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99c3a86eefe8c36ce7d3c17440d8def7a8c5267e3b92fd1364fb548abdeb38e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CA5KR1562993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888acc533b3db766121f37e322592a5fd0ef5a7b504f9a378698c8e080f45f0a. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/CA5KR1562994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526ccb60b84b86b1bc88e69dfc96434cd8b3722c6e92ef5907d79faea6cb8e62. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CA5KR1562995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccd232a0b0bcbf8a31f65cd8a261c12b99dfb0ee0ceb1cc42be8662a982ee51. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CA5KR1562996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e7f909c9570e4d82fbc8eb5d20d29d9a9dd6c87f0c627a74c8bdba5c325e90. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CA5KR1562999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb94357844caa0312df24eb5f08f547abc20ba4e48eb7d312079ab1f2f6190d. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QM7XC1500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18f5f6437fe3930365a986d70ce0bff99aa4f3c9e692294bb52985186588a1a. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/CA5KR1562981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bab43767a0377d96004b2b299400cdc2442e56fbaa343f074909e46df5b6bf9. 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/CA5KR1562992.
I Can't Wait (Remix) [feat. Lil Durk] - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb2ce508c9001334a7ffa2b2013641adf853f8717372f4fd182dd1462349d5e. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZS1Z1618259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54de445f4bcbc9d2bfc456aa49584c96df94dc69e30ceac3ced98666d1816f43. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QM6MZ1933599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f4b1162e75754946e19330d2f4ad836e84bf10175439497a053129611eeef9. 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/QZ57A1600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa8554b0b00ea819e1e07af7feec7d6e18da56d0c44a3fe36f9cb9bdd001a4b. 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/USUYG1055729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1caf94912d338f9c9d5615ead84f25669374365def3bb48f86cb56b1b9c8d24. 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/GBH5W1400096.