Nyco or NYCO may refer to: Nyco Lilliu (born 1987) French singer NYCO Imerys, American major producer of wollastonite NYCO SA, French manufacturer of synthetic lubricants New York City Opera (NYCO)
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 0x343fcc235353a55115fa11ed3144354eb272abd1e48b4f572dfb2e7211399c9e. 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/c5282c93-7adf-4132-8c57-2ab6f26a96e5.json and https://artists.proofprofile.net/proofs/artist/c5282c93-7adf-4132-8c57-2ab6f26a96e5.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 0xe5ce52507e9e8d3ba456320fe9e9506e85ed4d157356cfc7ee5715c668d69e7f. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/GX5MX2173074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997a9d7f051d792739bb091f6ff1ad2e8cecdfa8caa61707cbf070fcb0a90291. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZES82209220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085b48b7822bb5b450dd15d27a2f1e669c38175135d363443bf9cc229f46e6a3. 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/QZTB52247910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9556d91e87e2e61f65e2dd8c9155d6569738e5364f50d2300956d5450880507e. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZHN62304530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4b65d2a526c24f725573a89ad230f87094d96e2f2766f50ca73463ab0c2333. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:50:17Z), 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/DEH742409505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacff76a20d9b17665d05632d71991e09d0ff9ef15be69805386a9265d6220661. 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/DE1QW2502731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3824372ec8e15789199fdb5b1c5e5df60b0e750c25c32df85465bd8e1235a7ff. 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/NL8RL2402524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2029b8216fbd01da50463f2bceec2481428cf9504ad75ac106f6910cf6eae600. 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/QZK6N2239788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2ee5472f59073dc87684252b5c2a2a5544f6ec5b0b74622bf10b4929b4f383. 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/DECY52300870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbd3c987cae8bf0f1fc649af5af1efc3e81ed09e9bfc7094108a88f7674ed8f. 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/DEH742440621.