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 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 0x978ef66826a7de4ac780b72f8b9550e7d494c2695c17a9e867fefd4b8ab3422f. 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/079f322d-299f-4f59-902a-4610f995e417.json and https://artists.proofprofile.net/proofs/artist/079f322d-299f-4f59-902a-4610f995e417.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
One Mob (feat. Joe Blow, Husalah & Philthy Rich)
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 0x73ff7aeae3de903f62d713dbc03276943b044d5238b4062349373171e862c82b. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USBAE1305263.
Young Niggas Trappin (feat. Philthy Rich, Tadoe & Juice da Savage)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45383c7255bd69787aa9a48d6b46e23b1679eaf3bd4f67ebfd01dafb9b90a93d. 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/USBAE1316656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2714af31cb20aa4b6d0fe61a3dfc9e13b4768a4bc1090e44ceb7d604c5ec06dc. 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/USBAE1322454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b188c056d638ba43f1bac257acd3a2c6b8f0131ce3751d188c1ffa0f4ea3841. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USBAE3356781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e5634de4a61416f2724d5cb3a85f5bb07d7a1c06f4e4787f3b494628515046. 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/USBAE3360576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c33c44d975355746f20b86609a13c084b5b79c3c9d00ee95ac3c75dbd3200f8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USBAE3364295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9e18651c0fcbd8987be597f51af16bb75826ca147ec5601e6b372a27355905. 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/USBAE2205464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761336e732f40acbb4c40d10eb8c115a5484a1fedf21e365cd658619b0106c82. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USBAE2208726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7008f187a339081689a19925199fc213f3c66e288c48fe604687369d2bb4d28a. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:52:10Z), 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/USBAE2208734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba179b06fcdbc6d74976d03f73c057e1368690a6a0d0cc91eb6a325c4319fbb6. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/USBAE2208735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1624e9edaf063e9f93dc616e3f5d27dde032b13eda17032e486da27e8ec9787b. 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/USUYG1082600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf39970814db6072c194c978f8d7452ba8b9229ce08821de38c6d79ee76a7f9. 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/USUYG1082599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5e57526a4ed2121a91b44005fa732a7d861ebce952c6750312ba6d1290821f. 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/USUYG1082602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227b48ba47059cd92b66ad5964843fe1d4459ba505637a4d6ee494571e67fcdb. 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/USUYG1082603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ab9d5a4e60e6a844da29ff2845a4984560b5d47f27c4eb1e564af683515c34. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/USUYG1082601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f4679ae0f58df67429940ffa93fd8418065a04694a6a45b8263e33940b5917. 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/USBAE1310656.
1 Mob (feat. Lil Aj, Husalah & Philthy Rich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f343e2ad59bda61e7fe53e3812cebe4ca6b302e516e6929d7892f827094911. 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/USBAE1314958.