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 0xf121a40abd401a26843af302981f12dd6b37f4adac63d7b6981df709ed753da9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80599b22-0fdd-4dd9-89a2-d8b82fddf5cc.json and https://artists.proofprofile.net/proofs/artist/80599b22-0fdd-4dd9-89a2-d8b82fddf5cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
G's Iz G's Remix (featuring Kurup, Xzibit, Snoop Dogg) (feat. Kurupt)
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 0x532277b29f6115536572253013d1189cdce791b7bfafb6f155b6f4f5b857abad. 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/USLR59900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fff98ab6cd82adc784648263a620b5fa4192705d28546aafaa49df8288b5e39. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USLR59900069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46a225352cc855fc00fc068c0728cd34c63f8be63571353c0dc6e64e9d95900. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USLR59900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013fd514a3102f8fc95fd3905c00cadd4d2801121d185a81343e9cab4adf2ba9. 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/USLR59900077.
Only When I'm Drunker (feat. E-Swift, J-Ro & Phillip Johnson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fca66de8512264ca1b6338390fdc128e8283251de3c7f6210f92c3c9d09ee98. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USLR59900165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b89c909fd2a1b239739dd0f107a14f650acf5756e8d749575cf1a1e23beeba. 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/USLR59900166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3e4bc3a6a9c97ec913746c1f5ffbeabd35bd21d84e412068e5de626f24eb27. 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/USLR59900078.
Smokefest 1999 (feat. Phil The Agony, Big Boi & Dre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0b360005ef341ce8afee23845e48b2e82cf1e7f51b3dd3e33ef2854bad8a50. 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/USLR59900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988af5bfa702fe8c6e26804fe41cb70d63af9dbd4a742014069c7d74b497f54e. 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/USLR59900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83072a0ec0e05a3fa3b3369c759651e9b8d0346a8a0d8976a2a5d09cf9ae427. 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/USLR59900079.
True Homies (feat. Phil The Agony & Xzibit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043adbeba49f2f5103d5798073dbbf9af416c3db9f3b21dddae264ee54dc0de8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USLR59900073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5606cfc8143172bb796abc6cf09fde2c524a19b14df6b08d3816cc935b0664. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/USLR59900075.
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 0xf75afb0c62c953efc9768076b896852c078a86b929aed055f1c6cb7cb86825ab. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USLR59900167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce608bf8887289616808722424b75950e7f34cacb0f31bc0db3a6fe326bf3f1. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USLR59900074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7374bbe5351fc3c2b610ee569ded5bcdd37a027a862f44ed9224aa05c1dcc6e6. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USLR59900169.
You Wont (feat. Ras Kass & Self Jupiter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015918b95297cbc09ffd93166537ce50d1b1bce4aed9135ba5908fdc17c72ba2. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/USUYG1443527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5147dba2783d56913d2506b52233d278314d9f751af4a21921a8c43bd98117c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USUYG1443525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9354babab7a736a7f707ec9df07de3a309a2e3b58e1b8cb60a94fc682f54af40. 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/CA6D21400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86646817c00a27d35b745f82da17ec08846199d3175915c63a83f4697f2df9c7. 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/USHM22049898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473b492b228a89ba48330be77cc08ed3fdd2990a8dd689c4a52baed192922745. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USCGJ2099001.