Matthew Peter DeLuca (born April 4, 2005), known by the stage name Lil Mabu, is an American rapper from Manhattan, New York City. He first gained recognition in 2020 for his song "Miss Me", and became
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 0xdbffb8839e3ba450354b8ea02a0be6f9a123fe4e8daff0a4faa41cc27111e048. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1bffe77-e320-46f7-9463-16f629a3f829.json and https://artists.proofprofile.net/proofs/artist/b1bffe77-e320-46f7-9463-16f629a3f829.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 0xc8a863c16a1e2eff3d52cbf55e14edccd9e5d320d6663ab047fd612fa02dc841. 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/QZVEM2324634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae78e5a8c9b1f67756910e88151d734373c27bb02490a813b3e78e963322d14. 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/USUYG1535380.
TEACH ME HOW TO DRILL (feat. Fivio Foreign)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce3fd91fa9367db95925dcad257c831befa0f89614cba6f76755f07393d9a0e. 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/USUYG1524955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d0d31f84d8d5deb295803cee951e00477a376963ac9711c01275d60e64b74c. 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/USWB12400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78617cdcc045aee5017b02340afe3f82c93aedc47c64a8e83bd67b54333b26b6. 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/QZVEM2300690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1916652d21719d6660ded3b2eb3f6a3bfbeeaf5a94ab5d6f6489a8a0eef8140d. 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/QZVEM2364808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d0d31f84d8d5deb295803cee951e00477a376963ac9711c01275d60e64b74c. 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/USWB12400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f9984ffd433dee7b28247fb42e0b3aeb9d0c0c81577897f781ac7f242617ae. 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/TLREW2232949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee76b4c59daa2f0924bcb3f3233cd1b12a498badfcdde0c8936f025d316c49cd. 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/USQX92405520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee76b4c59daa2f0924bcb3f3233cd1b12a498badfcdde0c8936f025d316c49cd. 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/USQX92405520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f03f5bd057eabe3b25d364c2a8ee74f5956357c67a9b76335148d78b765fe19. 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/USUYG1539661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c8b236930dbf1b7963e24a5936fe7265884ae636f5a7a2c4cdff42ad6338e0. 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/USUYG1539663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b3c380420382ddb4fde91b1961212a6b9380badd72e7b530027e22bdff4d61. 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/USUYG1539665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43e278ad673f7ca1cc9c237e9fb95a7c9d416e82193fa5a22f6dd7d516dc8fb. 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/QZVEM2310347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4260c3203ba5f8cc6e88c4e1e79ea78aa0ad879be1bdb682a11116f04a7ae10b. 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/USUYG1539667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8ab37c87dc6bad71a3cab7960b8105191c51b37edfbfc5f3679e5b5e9a8c8c. 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/QZVEM2300585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce3fd91fa9367db95925dcad257c831befa0f89614cba6f76755f07393d9a0e. 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/USUYG1524955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac941f8b375cf31a8f8d58802f6df14e0ed2b17a93c9098060bf70011adb911. 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/USUYG1539670.