PRhyme is an American hip hop duo composed of Detroit-based rapper Royce da 5'9" and New York–based record producer DJ Premier. They created their own record label PRhyme Records and released their fi
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 0x602f5ca44c72d81659c2ad4da5279b8ebf5bb904a8fc3f5f05489d63daf56191. 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/c414063c-3cee-4b16-93f0-80e920176b80.json and https://artists.proofprofile.net/proofs/artist/c414063c-3cee-4b16-93f0-80e920176b80.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 0x3e978132b031407fe14754e105d99016022f61a4b759344a1cc801b720c52bbf. 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/KRA490400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9cb60ff844dbdf6a688dc8aa4d56a30f150507636289b651079bbf786aded8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRA490400067.
Southpaw (Music From And Inspired By The Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1947b55e37e1d395eecd48e9394b5b38df81f42f64f742b08d0250c0976d85. 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/USUG11500841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafd2e48d1b5dbc0c864d2954edc2eeb01c532d04e877fbc6773bee7d30dab2a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71509167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16cdc730cc1b47a1bf3c2a40cb9c8775110445ae43493f8e36b04d757b9ebe9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71509344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f3db92cce068eacda9db6226473ae05d445b92aa2b1794896a6ebe5032422b. 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/USUM71509345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a42eccea90ea5e2de1a63a9df1376ea51d471282aec4a653833d63ead6db8a3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71509170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2aea57654b043740a6aa122bd0f1d4f8fa563e662cc88ca942ca3f70b96a69. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUM71509171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb95c2557c955c9cc08f4fdf0a7a32733899508c0e54ea40a670bb4ea25d9ad3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71509343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb961f0b584d7df4c506e07f82a0051353aa0df5ee5e03eebc01cbd1a334250bf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71509173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c35d7ef7fdc8853252a5e82b435cf5bd8f33637f6237b75cd4a716d1d1d8c2a. 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/USUM71509174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a16559df4edf85686dd775ab11ddefacab08c38153005f6758764d9938d23f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG11500870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ac747de73bcef60103a0f7227f375ada904d6f203d10f04e851ae0706939e2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71507741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a7ead72602908bc1601af598cadeeab6ad4a8f3d2b5247dfd61d68edff7499. 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/USUG11500871.
Dat Sound Good (feat. Ab-Soul, Mac Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc27b49f2cbc0103d1813fd06edb8f59812c1b116b4ea408f2c791586a2e5d3. 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/QMLD61400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ad5cfd42a69c27127123c11609110250fa8d55e68df4521579097b514b8164. 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/QMLD61400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc770d59525840fc890ba1ae5d1c9b2e953bec5f708fed5f80d768ba87eb177ea. 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/QMLD61400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb7b5ce00be903f51982648770b18f5d2657e3757d53cf10699edd0ae453bcf. 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/USA2P1557089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986c0715ba6d9558fdbea984a0478f485d0aa66e7580c3a9e27bd92b9229d54c. 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/USA2P1557090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2f1c6c342fb26ebad8de9d8f22479e8956c5495ea45bc4611b93d521cf66c3. 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/USA2P1557092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc27b49f2cbc0103d1813fd06edb8f59812c1b116b4ea408f2c791586a2e5d3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMLD61400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ad5cfd42a69c27127123c11609110250fa8d55e68df4521579097b514b8164. 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/QMLD61400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc770d59525840fc890ba1ae5d1c9b2e953bec5f708fed5f80d768ba87eb177ea. 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/QMLD61400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b16676171aa479cd60992a9d08b484a1e3e3824bd0d36a3e99ed750937fbca9. 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/QMLD61400373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3504709a20e794831e6361cce2714735a806f9eeeb58dddfd89be6e781cefc. 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/QMLD61400376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92314140269f964fb484ffd97dc49c9e806e57b26f141274d46474b5abc86797. 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/QMLD61400377.
Highs and Lows (feat. DOOM, Phonte) - Single