Tyrone Mark Lindo (born 16 November 1985), known by his stage name Big Narstie, is a British MC, author, rapper, singer, songwriter, comedian and television presenter. He started his career in 2002 as
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 0x55b53ecbe75af6cd3ba171d3c936962a0f2be5c3b684884dd7481abe850fc1dd. 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/a42f94a8-0928-49fc-87a2-c039f9d19bd7.json and https://artists.proofprofile.net/proofs/artist/a42f94a8-0928-49fc-87a2-c039f9d19bd7.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 0x76dbea36356fa7854f876ef186f6f36b972f695cd74a8f299bbf41f02cdf825f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR59R2240757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf956cb33e928440efc3dfa231f998951f5db0d79c10a5f9bb5f0732164c9728. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/FRX872007812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4bb1901bc20bb6db829ef2a7e0bd6b2311cbbbf2d8b699591f98dd53dbcc29. 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/FRX282014507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671085592d278284707ca03d1328e3f5895f02eae817ce5a90970e332eb5ede7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBSYA1103920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bcc6463c541bd54e577c88f4a2c572645fba74ab96fe976afccadea0e9d942. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FR10S1528831.
Big Narstie x Fumez The Engineer - Plugged In
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c109dd2ec77b327086b5e00e99a2fb4dbe5236b90303699e23a45012758c9b. 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/SE5BU2473447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94966916397608c6ace6f4af901a5f364b23622e45fe5dcd0e6a39aedabfd04. 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/GBLGL0800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45997c460915293ac46a83d539fd2573024ec581dcf294d29df91f1d87ec59e2. 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/GBPS61700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5255365d6889887c1626a6ae0aa81479d9a2ae8195d833694da00d53d2347a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRX282036012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf161f0b0f81eb45d98f1c19cda5ab7fd34c81672ae1938fc48523b6a98d09556. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBBFF1700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51ebf1c337d02bca2796df9f6a1c11d3c0da29e6bf9d19149def2da2e09db7a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBBFF1700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5255365d6889887c1626a6ae0aa81479d9a2ae8195d833694da00d53d2347a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX282036012.
Not That Deep (feat. Solo 45, Big Narstie, P Money, JME) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebb5d00e5bff93eda627570f04c2a81c7dfd6c6262536e557105e0246c5cbee. 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/FR2X41426516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6130f6ac6f22bd357508e7b758cc449b3d6fb25bfd31a7387c67a3660c60217a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR2X41426517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf69f8ece2b31c2b6b3176d95569baf8ad546341281bdd02b76a5f7d9ec6cd74. 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/UKXN22221764.