Nikki may refer to: Arts and entertainment Music Nikki (singer), Japanese-American singer Nikki Lee Nikki (Malaysian singer), Nikki Palikat (born 1985), a finalist in the first season of Malaysian
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 0xaab507f974b4d86e795327e7204f860cf3dbb90f958ed13a678e72ea05558e90. 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/5286532e-515a-49d4-90eb-6fc13a1fb766.json and https://artists.proofprofile.net/proofs/artist/5286532e-515a-49d4-90eb-6fc13a1fb766.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 0xc00fc3619408ff9ee044ed8750779d15ff3a84ca81f462193bd182baaaad601c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCJPP2127541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81e4eaa70c7775877655780cf3430e89ebd62c644f6714ace8b284949acae0c. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TCJPP2127543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b1e50405ccc598792e3abd4fe39c1fd5e75f8dc880da6b6cb60d540abb0966. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCJPP2127547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7183795dccf85482c609ea7f53c5b3ac5c681c157ab5ec04a4ac3ca68a36dcf. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCJPP2127550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba2fdde289b2eb50218852cf58cfa51975e02b50bd369bcd092b17b2f876c26. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TCJPP2127554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe599c38abc41306d5cf7def1224fccfacb6074f9e6b9352015434cf2de0f0685. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCJPP2127556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7204e11f86a6ce7d068ddf22e198999d7465b0704b05b8585d6a330fa5a5801. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/TCJPS2291190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972b953a3313619d24ab6a20c86ab1189219b245939c758f42472f082180f562. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/TCJPT2295777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1025507ad0a915fa58edf27a11c747a7a2a9a32b0688e2978093151381a21075. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPX2379370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e2b519e01e269f4aa1c46e413c4eab9b4c8d9d0743970498d697e6ebab4309. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPX2379374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407e2d96eac7b1d829ef03d3e95dc6194a587d9923b83f8e6364cca617facffd. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/TCJPY2327688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b66500c0e393e1a3202472da097cf2d5601cbf1bca4565445ed15054e4978ba. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPY2350110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fd2fdb0ec786a04ec313fdece44e976f7c4167d11492db2a11fd64972648a0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPA2493362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7a675360e490d3c4b03c0164d8d9b3ae6b6dc205a4cb0ee97fb32e815fcc04. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/DGA0S2446560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5854006de57d350875ab936d4bff988e59d000fee8240dca9e918911018c7cce. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/DGA0T2430922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478a7fa83c4ef3fd0740dc2cad2561ac7b19557fd09be29c61df2141fba686be. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/FRX452575210.