Nikolai Paiva (born June 10, 1988), better known by his stage name Niko Is (stylized as NIKO IS), is a Brazilian-American hip hop recording artist born in Rio de Janeiro, Brazil. Currently based in
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 0x03e7e9cccce49c03a72902c7f776b77a592eb70383965cf7611557e617e056ff. 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/8862a630-0145-4bc8-8960-2704bbab7e3b.json and https://artists.proofprofile.net/proofs/artist/8862a630-0145-4bc8-8960-2704bbab7e3b.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 0x658bdda29d9232c976afe9e3ab87bca8f13faf78a68c405b36553550e0b9e38f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZDA41893640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad12f4ddc0c91a8f3c7bd9f8f24154b7405b2c687859aa41e2861125239ba80e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA41893645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ab27c79914b70255e964200b6dd737b84277251e7a5d62f6c85a79a0e3b37a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QMJE31300126.
Tito Crack That Dutch (Portuguese Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cab436d49338d241fc9f70f5a648c14bb9ff8d741dda278f4e96c407ff2bfd8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P2227494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152483b3bd16ff0e63dd2d23c02488f85f6af5721e7acf64416b1dd4c36e233b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMJE32200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb852cc2517b80e828cd7ef305565402fc23fde51c19d7abbdcb5d1f08eb57776. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QMJE32200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8d08170f7da94e34580826d56870ad3dd3ef78765418474714316f0b994ee9. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USA2P2207513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780cd1458d94e65314a66c174a18497582969a6a7df6dc7ed152e6cbf5f6d4cf. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA2P2241676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4946640a839c4b9497c5eb61e6da2dec11df9da1fa4e94595cfadb4af95d88d. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QMJE32500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23058bfffc4fb759eaf5aab351cb960e8cde8a30de7a3bc7d3998383561dc0f. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZWFL2510033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f14659cd930a6acffd17454c35567911c889378f88ef73780d852f0452dea87. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QMJE32500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb564c767b84cbb667b7c534d28aa0e2c4dcd7f38e4862fbb8414400c9fc7fe. 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/QMJE32400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1a0db621c4b637deb2f936abd4093879b6029f08b0169e9a3a69a48eef3428. 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/BXFLW2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea27a656e7d5cdece3603ddc5279f2fc18e657b226ff5da06629d245f843e46b. 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/US6YF1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bb92710136abbfdcbdd3454499b6c99766e81f06ccd8139a7df29c418a2d80. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QM6P42126856.
The Zone Out (feat. Talib Kweli, Terror Van Pooh & Niko Is)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b716ff7e7ce6e6ceadbb5ec8114061750a0304ef7bef0b0b5330ab72ad4d6cb. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USUYG1252759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe6c536d2c992da535173fb73caab26727418545ca86a37498d1149fae6c5fc. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/USUYG1366425.