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 0x8558b9e8e6a40fc15aa2b9a2de92227f7c8712950330db20398592eeb661b634. 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/6cbdbb80-3587-4e1f-9f47-4b14132f96fe.json and https://artists.proofprofile.net/proofs/artist/6cbdbb80-3587-4e1f-9f47-4b14132f96fe.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 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 0x565a8f53e12ab05928599997666bf59a64e799e50e54c4580773839ec6713ccf. 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/US4TX9510033.
Bullys Wit Fullys 2 Gangsta Without The Rap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3dcea68be5e300a4e9d07ab3b64bd7c4170bf153d547977fd3cb811678ca1d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USA2P0877393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0e409fc7c040953fb614baef8395480ac0f04a97bde26e4fca615ac78e515d. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/USQY50940639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75767b5dded97af8b12382af49807277c470ec5b04004e4d0100f40cef40159. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/USQY50940641.
Demolition Men Present : West Coast Gangsta Starring Guce
Guce Leeroy - The Last Dragon (I Still Got Them Kicks)
The After Party: Saturday (The Weekend Edition)
After Hours: Sunday (The Weekend Edition)
Black Bottle Affair: Friday (The Weekend Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95976fed1ee7a6251addad3c7519be1733cacc9f27a42b7574d18926329eea5. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USUYG1334144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4feb2445854bdccd7fa645dfb75fa1c6ffdeeec4b73f18f7eca6ce76752c589. 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/USUYG1375017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cba2306f48705364ebecd7dc3b1bf4c162a1bfed27c9848ee3be937cc4c28a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:14:25Z), 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/USUYG1375020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1c6c460fee838bdf68d3fb99fdd74efabc37bef3089d8d27ac549e5949c124. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/USUYG1375026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6c6c71d96725ab5d9d4299c5819bc747e4fe8ce48bbb5e5f629f5cdc957000. 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/USUYG1501649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6095bb941f337c62d3ee99bcf9a056d910c737e355578b073d7eec65745bae02. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USUYG1501650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6ed3d4772d1fc01cc53a65f388bc039db8e6da338bc0793a596648493503a8. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/USUYG1501651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0110881d2c4b4d2c3fdb8ae40e476df7a27663a0f1af5094fdb87b30857c42b6. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/USUYG1518141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33d234cad12312afa7d4dbb8aae057f0ca6e612bf7dafc5179ea915407e986d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USUYG1540376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b464f114bb0850f58db51e5438dce3dc22687a2cede33cbc4e80c4106a0f03. 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/USA2P0610156.
My Money Straight (feat. Guce & Black-C)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78fcd9a1dc74ba2b353397f4b6f1a0dfa8ac613160d93a6488b2f28a3e94e54. 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/US4KV1100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73c29e67d48e6eac010d9ad8aa0e5b50fa96d8260c9293a6f86d5e78d90fb8c. 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/USSUB1407109.