Raynford Avery Humphrey (born January 8, 1986), better known by his stage name Preme ( ; formerly P Reign), is a Canadian rapper, singer, songwriter, and record producer. He initially guest appeared o
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 0x10541c7cf75f2fd941d9ba024386781d41f484057292870f6510554fbd56f3ac. 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/7c849948-441d-4654-82c5-0b326857a412.json and https://artists.proofprofile.net/proofs/artist/7c849948-441d-4654-82c5-0b326857a412.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 0xdedd02d75d4bd4dded2d9076dec99cdf1293fde607b141847e7043d91e0909f8. 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/USUYG1400573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50759bb5e1089ade61e0f721fe94e6f500815889be08c349e1dada8c76804c16. 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/USRC11802038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a698efc929f7a8d21af506d7cd3f744945c2e83cc18d444c4b0c45bb8ff573. 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/USRC11702769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972c05f6dc2e236a068434bb5b302024b4886031ed65c87ca9267808b8077cdc. 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/USRC11801640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa128e27b5a08dac614100c2dc4fd8793317b34feca55cdf2429dc4e31c5d2a65. 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/USRC11800941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87becb30f48d6ac5cb9e896a7a9b1b0c435abc6f2e1a0435a8acd76faffa7c5c. 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/USRC11802040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa684f4eab96f787255140ec58e3a036fff703b165b55a4b0f584a4cae01a35. 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/USRC11801058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0344beba87830fb1037c3c9c7361f3d37998a439ae5e18c8e9e9263627250238. 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/FR10S2201372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e43cc9df59668b851ee4e2d0dc87b7dd0c8cc54041d51b50cfab119b318da99. 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/USUYG1397263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4238aac03475caf13e475ae2f01be2427560305bb330a3be35acaaf05177cc07. 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/USUYG1386293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e5fb26ad898be2abc9685f946ae9f740b2ade4afbf5c2d8d9925a3d8c38194. 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/USUYG1380765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7056f4441faef85b3019135427030449a7e6debcbe63d0e84bca6692365b6625. 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/USUYG1331990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f94be853e1b89d02bf2b89c8d4b208b259ace1b9fd4d67c11f8bd8390acc486. 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/USUYG1331995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef03fac073bb61acaa7e4f7d6f37512b627f7286f58a34d98ff97f286f189cd3. 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/USAT21812541.
Frostbite (Remix) (feat. Offset & Rich The Kid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7643c4ede5777babf558dff6a820a05d002eb9b9f4519f0768f11ae6b39fc7b. 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/USRC11803079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa684f4eab96f787255140ec58e3a036fff703b165b55a4b0f584a4cae01a35. 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/USRC11801058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcbd04dc5c76f579a0e23acd3e8dc0b7c9f3b49822d7620b7ee95f82800074c. 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/USRC11800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02aeb225b8531be3324f965d3a23cd83a2299a38d4d63b52b5cc286073b10816. 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/USRC11401841.
Realest In the City (feat. Meek Mill & PARTYNEXTDOOR)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed0563f88a6c7f1871438f8f7516d8c139646c6965beab2a60af9afaf80ebd4. 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/USRC11401917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e71f30841ddedd782a8e49da0249ca565e651d63396398530e807b28f1fe7f. 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/USRC11302118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e71f30841ddedd782a8e49da0249ca565e651d63396398530e807b28f1fe7f. 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/USRC11302118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3c7398ff776c3bf6a098b1fd8163a94bb1a7b07eacaf00558e204e78234d89. 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/CYA111800123.