Matthew Raymond Hauri (born March 19, 1996), known professionally as Yung Gravy, is an American rapper. Early life, family and education Matthew Raymond Hauri was born on March 19, 1996 in Rochester,
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 0x08d755d3ef868c947e42613a884806417d12f1e2e34c69e75a801852aad7dd15. 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/2a9a9d35-cb54-4c00-b528-9d2229ce8122.json and https://artists.proofprofile.net/proofs/artist/2a9a9d35-cb54-4c00-b528-9d2229ce8122.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 0x70f715e7fbeff6828b4875db9dc8cb36fc7726b1ab7ccd01735dea009f7a0fa7. 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/USA2P2201338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8c699e16a696b13d6a3bb659ca31a2c07017d370e8797860153df5c965b8c1. 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/USA2P2201337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc77c6cabdd413bbab0e12f0abd7414721901bf98d787a10344a0f66cf98defa. 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/USA2P2201339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0075d9b531736f4d2673deaf641f75b1feb2d5ac9147eafb35f233319c39e918. 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/USA2P2201340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4553e02bcee6490fe0c49b4e9bb9e1b60a2064b5298c2ee24b2fe0aebfcd1da. 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/USUM71907209.
Always Saucy (with Ski Mask The Slump God & TrippythaKid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d33bf82c48e1f88634b7ffd4da439950bd679137e23dee837fe917d5298d702. 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/USUM72019047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4ddbb6755cd1e40b7461d85c2318e9c80e69003deed785f4558fce21954489. 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/USUM72019050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db61c89c4c0659da699b9ee0d11d1640a6fbf565e6bbbc9e64aafbc6d9d50f1. 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/USUM72019049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7219994752155ea534e5ffc3384c679c33e5b0aa2dce3ae571fd01824023f1a2. 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/USUM72019054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647ccc1c8ec44650ccf33541fc2778f3397ce53267ad76493260e951eb26cbc3. 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/USUM72019052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab8630dc17e7794654c533e46779455389f3bbe4a1ad533a674ec2a0cc979a9. 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/USUM72016550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdad828802395f4a9adb8ed84b2f7f76070bcc72d317e368b2f74ce04450289a. 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/USUM72019056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81db478446c69c24da50a7cc142bae42db28c2c8c4004d8598e19c6aaa2b935. 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/USUM72018036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761e8ce2382e02e529a31a9e6a0d1ada53c3385d3d87c847c3da93337c8cf061. 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/USUM72019053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7d31b1f81c70c88cd96667764a7b1daf9b50a94115e9eec6306c935ec82618. 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/USUM72019048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afc7b9e2ffbb3e4812e600f31168a06a1d6b04e4338d6b90849f818575ec9a9. 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/USUM72019051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8631111d6471ead2d2110a4db06aace0e2020a3d4ea3fb78b16e77dccee1e47d. 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/USUM72019055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c1e4a712fbb31b946222fc67da0d323526933e334887db5131220a457fa052. 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/QM24S2007822.
Tampa Bay Bustdown (with Chief Keef & Y2K)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140f69fee62bb3b0d8f4887b7a8c397db8b67d3ca9768018c8d1e0c91e4ef0b3. 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/USUM71916834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b148c94856bde8b4fec8c2fa0de4b175b4258c1d414cdcebff7f7ecad427f0. 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/USA2P2333544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec38e6f9ba674edac3563ebb3e4783e7d8d50ca6a0e7015f98739d47708d294. 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/USA2P2333545.
Nightmare on Peachtree Street (feat. Freddie Dredd)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd964aa7dba64fc5792be654ef7494b7db9b606ea8c8d2cd2bd3eb549e594bf5. 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/USA2P2333546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d60ed1025f5293f165ee798ee5a4459b371c041799368217c0db6f9fb2595b. 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/USA2P2333547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce2dd0f7bcd2dc2a9581fef34aec38d7fcc1b6bab4c63fbb99f36d2462403f4. 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/USA2P2333548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76141d47d677b6b28916bb9c27d95655c22e1f4098916679bda2ec263330632a. 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/USA2P2323252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df140453697fa842ebe5cdc7cde31eb371f9c12f199aea72921fe4f9056d74f. 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/USA2P2333549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c95d37421221f58a5c538067b402808bd98041b304196edb97ffccd5597d10c. 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/USA2P2333550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762c18b8850715b7482eb839e04dd9f38d2962dcafd7c47cbe075bb6b65c9545. 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/USA2P2333551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8081fcc303ee20d8f7eb34bb6d9b2beade0dbbebd24f95375773f22b9d50f65. 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/USA2P2316906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef76157a8581efd8919279f3bf86bc8b1b087d800bbe0555da59904ec914f60e. 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/QM24S2204083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29088b13b32a58b5d8ff2d43620dadc7c28568c7d25ec9ad2ff5886a3a4fb961. 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/USUM72217863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd964aa7dba64fc5792be654ef7494b7db9b606ea8c8d2cd2bd3eb549e594bf5. 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/USA2P2333546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8081fcc303ee20d8f7eb34bb6d9b2beade0dbbebd24f95375773f22b9d50f65. 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/USA2P2316906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a9752098532c7fe070ee4306d64e1f662de45cd9dcc67cad8088c54ce2d3db. 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/QM24S1926160.