Nico & Vinz are a Norwegian duo consisting of Kahouly Nicolay "Nico" Sereba from Holmlia, Oslo and Vincent "Vinz" Dery from Lambertseter, Oslo. They formed in 2010 as Envy but changed their name to Ni
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 0xb43495c4e390f7929449b3e0c627c407008bde169edacd97a0396b0b47640eb2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f409236-e2e7-4fc2-9ca0-cb673f2bdac9.json and https://artists.proofprofile.net/proofs/artist/7f409236-e2e7-4fc2-9ca0-cb673f2bdac9.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 0xae78ad2c9461f06b015f558522a08c32d03608ef58dc8e1aabe2d0ae0e0815ca. 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/USWB11304681.
Lift Me Up (feat. Nico & Vinz, Ladysmith Black Mambazo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0d459c51822948427b3558d57a1be6199d42bed239fcf828e062655fb7e57c. 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/GB28K1400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae78ad2c9461f06b015f558522a08c32d03608ef58dc8e1aabe2d0ae0e0815ca. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USWB11304681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae78ad2c9461f06b015f558522a08c32d03608ef58dc8e1aabe2d0ae0e0815ca. 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/USWB11304681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8681551aef7c6480108068d2cbab2906ba4778fb5db7bef6a0815be486f6da1e. 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/GBAYE1500994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3d39eabf442b6798c27635e94531d9b551f49eac8cbe6f9d12c77de1a6d0f5. 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/NLUW22301932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe660379c8d5a47a15493f3eb9e3f097de352d17bec648cc8352e377078b1abe8. 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/NLUW22301933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0d459c51822948427b3558d57a1be6199d42bed239fcf828e062655fb7e57c. 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/GB28K1400050.
Yesterday (feat. Bebe Rexha) vs. Lift Me Up (feat. Nico & Vinz, Ladysmith Black Mambazo) - Listenin' Continuous Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328f4f769ce47323503d7aaff269959918c7506068965c63f2c269e9e451d1d6. 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/GB28K1500087.
Lift Me Up (feat. Nico & Vinz, Ladysmith Black Mambazo) vs. Bang My Head (feat. Sia) - Listenin' Continuous Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbb69d91ba1d5516dd192fc00b615474eabc8ec58e826950995df96852e1ff6. 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/GB28K1500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3269cba6a53315840d2f44c4d5af8c50627318a77b7393673831d57afb0535b4. 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/NLZ542200898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec177fd7aa8c8fe82932631f007acc9ed62b6fdba744e8ece24666499a31d98. 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/NLZ542200897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae78ad2c9461f06b015f558522a08c32d03608ef58dc8e1aabe2d0ae0e0815ca. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USWB11304681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e050a4c7563aef2ad9ea26714be836c08178f2ed9f23b606e5d23265b45457. 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/QM7282450963.