Cedric Lee Juan Tuck, known mostly by his stage name Big Tuck, is an American rapper from Dallas, Texas. He is a member of the Dallas rap group Dirty South Rydaz. Biography Tuck was born on March 29,
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 0x88ba45520395691405c13f350dc128bf09b079ac226023e2eb3f413ea4ac9e79. 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/4b561c8b-4635-4cde-b15b-01aa089f37f3.json and https://artists.proofprofile.net/proofs/artist/4b561c8b-4635-4cde-b15b-01aa089f37f3.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 0xec1618fc9f84be617fcbafbbb62ea43534b5d7fedde02479bfdc0823477a4d9b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUM70605304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5dd902618643fa781d30e3cb8bf41ffbd098a0b158b6ffce147ded33c1e4f84. 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/USUM70610525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e524c6844229152fd2ed3eb26be75d33693cac2ef9191b3fa6c585bc3de1f8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USUM70610526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2db741116d8b248d62e6f4944803fc72b1bfb4f89e18618760e8a66dc6c1dd5. 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/USUM70610527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ff3db1b2facdf8c5e347cfc5ee1d7d2e597179d70a86965bf8e93f93ecdf18. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUM70605302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528d90e562edb17fe23b3d733a4fdb16de675a117d766510ca52d15e5df79321. 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/USUM70610529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a3c83b831db8282377ca9568f50ff5f1873e9e7d36cb7bb50eba0274ec8f29. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUM70610530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc042d580b80e424a2d34ab7408cf229bef8add066b121f838ac34aace822e45. 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/USUM70507014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9b451ee342e7d5a09445a9c4c1804e58cf0ec6559773cccb575f08938552eb. 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/USUM70602485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4613f6176f52ffb76b5047c27f2ef578acc29cedccc3119d97156bd5d978f5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUM70610531.
Southside Da Realist - Original Version - Screwed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5c42a8bff923e02bacc650be8e3e4b070f6953dfb015d400b7fd5d1d9e9729. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USQY50942499.
Can't U See - Feat. Lil’ Ronnie & Double T - Screwed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590200fbeb1d05653898c30cb6317ac399247360a446b3e2d3bf85d551183175. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/USQY50942501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ae2a47d7a7d1360ebd30f66eb34c0f8461149a68fdec570869df9dba1f277b. 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/USQY50942481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bf2a4614098874d3018138c8cee9051f12f4594a5a6e4408006905eb847a66. 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/USQY50942482.
Can't U See - Feat. Lil’ Ronnie & Double T
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268b2872d20a9d33cd682f2dc1b8ed032dda4e24693d7a4276575dbdc85e535f. 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/USQY50942485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e0d9d8d5a71cdfc4ba8f546f3c59e49be28ca99ec16002ea5b008f21e3d521. 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/USQY50942486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c1219155d378ab5fb757fb4f23ddbf37bac8aaf2ab973ed1ab7b480faf24fb. 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/USQY50942487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7237de70f878ef928f3206b772d616ae5ac0902b50e0a2ad23bc68bcbf3c90. 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/USQY50942495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cdf14e168231fd234c93aefc8ea16e6b61f4533839343bef6c550690560430. 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/USQY50942498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce331824608c3b2059a3ddfee3dca0e5b2f901f50f5371f9366aee03fb82018. 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/USQY51003959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10517552385bc6760d1050e82e52faac8d76741dafb3230424a056348fb53f4. 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/USQY51003960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e02be332769b442648d2ffcd80135b018881d62081f86b344f329e8a80e07f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USQY51003965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf491137b8f127c34718baba1999419b43e66a9a27b737e4e36118549287595. 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/USQY51003966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab3f6ec6888ad7de566abf42e8dc28b972e082038c6cd95444ecde2f48d1067. 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/USQY51003967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ef9d12451c1e65dcec6058cf0e0388a5f398d85c8d0152fd94609d8c8748fe. 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/USQY51003971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e3f284e41b147a4ee25b0d9a5fb2b39ecb354d74036cf5afa4fb0a1e9a2c22. 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/USXQS1618716.