Lost Boyz are an American hip hop group from Queens, New York, consisting of MC Mr. Cheeks, DJ Spigg Nice, Pretty Lou, and Freaky Tah,. The original line-up released two albums: Legal Drug Money (1996
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 0x87ca4456b033e660836f537bd98dac684d2cda58e66e7fecca0bd8294da75379. 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/36b2f44e-47ef-4be8-8416-5df3ac6c3ead.json and https://artists.proofprofile.net/proofs/artist/36b2f44e-47ef-4be8-8416-5df3ac6c3ead.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb6023e1581851e5225f2125de5112179020606a66de9662519577de20922db. 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/CA5KR1957512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524a8dd962ef878e63d0abea3445436cc8861c5115159c16d2c54d136ce2b6a1. 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/USUR19902188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354642828559cda07d54b24e8abe1edaf0efa154f567173e1674b588c780ec22. 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/USUR19905020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde548bd9d3b5a841a4c43fde685289ad1f4544bf26697dca1d258fc428e4be5f. 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/USUR19905021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb46aa1bf5b62bdb530083011c57c66f615229ba9f613505bceaa08114f8fba. 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/USUR10001534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa31be9ac7eea1f5fbd6526f40d3938679ca311e4b2047fe66b427d64b426583. 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/USUR10001535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e7af8807160b41812a40a0ad560fb9afca4a59169535cffef9a8a738c01c55. 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/USUR10001536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0c89685477495104559da9b46268bfc3ffcc0e86ed1fd4905692d119b14382. 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/USUR10001537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750a485892c4322c15dec2fbb6c41f3996494fdc4c92288fda1108c00a8ad4f7. 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/USUR10001538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88012a7b34588765cc05ddd0be68dcb1bbaeecfadd16b58037dc7255c5ffd03. 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/USUR10001539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5dd8eb27965efcf0fc033f6d789671c45cb5aec43f0f7f73102e2a72ba60b4. 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/USUR10001540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59004f5d6dd7c7f733d3516b76f66bbe297a76d257daed180b7b277476f958fc. 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/USUMG0000607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd808733da89f0eaf6f50a5a023e4db6894b5ad3b7d056c9de535827dea21cba. 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/USUR10001542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100aabef0c9879b3240cce99ca388bb9e9ce192a31cf44372465666874ee6118. 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/USUR10001543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a523d6742686dbf8026a2cd0fc31de18e0fae0172d38adac8e448172a11c7c. 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/USUR10001544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d04864abc00abe803f85b45738ca0485015f1d2cd321dbbc3911479c7578011. 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/USUR10001546.
Lifestyles Of The Rich And Shameless - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0754c1c47b419a2ba818459eb313e3f961079f58f80ff32c54a23fd62d25ff1. 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/USUR10001547.