Nicos may refer to: Nicos Anastasiades (born 1946), Cypriot politician and leader of the right wing political party DISY Nicos Jiapouras (born 1970), Cypriot International footballer Nicos Nicolaides
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 0x19cf7c0b56a59f7c84a19dc0133c60a5b81d953c617c767ac46d1726f906f6d2. 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/a9611d50-48ff-4525-b398-1171d3b5b510.json and https://artists.proofprofile.net/proofs/artist/a9611d50-48ff-4525-b398-1171d3b5b510.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 0x1cfe76ac91ba2e2fb24bbda18f5d99b415499a25047ad7d7f3df739fe0aeece8. 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/GRFM12300225.
Nicos Χατζόπουλος Αφιέρωμα στον Γιώργο Μπίλη
Nicos Chatzopoulos Plays Giorgos Konitopoulos (Nisiotika)
Mediterraneo (Remastered + Bonus Tracks)
Yoga Orientale: From the Creator of Secret Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1384a2d820e1366419822d9fc63fce58fe1f5e40e2e13598e26324353c3d2a13. 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/USA561232251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb75ca3efe70e67fe403d983c01743f18645aa6bc86467ab157e520574ca958. 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/USA561232254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae511dd86119591dcba97e9d2d60b80cfc22a50fedb991c43d32497b38b06d8c. 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/GRFM10800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7666003deee06451a9f69a9a5d42019a7b437a4ff58f8cf261faf71628b14b9. 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/GRFM10600174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e29b7474a4ed2def1bca91be77ce8f1ca94ef7dc88f2f3df08187fef9784b0d. 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/GRFM10600181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5610cba2b787c5f809c3ee5bcf4eca0ebb3cf092aefbe3018e736bac17e4d3c0. 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/USA560440011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4916a6dbe4d9b52cd19339e984a480df79b6c8882e39d99c46357b89793f8ce6. 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/USA560440012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031414ee97a465b8c2f37802043ec878cd67683f62741173a33f610d1a8044fd. 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/USA560440013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10f9d0688c9f048e9bce876c39566e48fb1f0aea5d7a437f45f5d398540de5c. 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/USA560440014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421a71cd122d66266ca61ff6d6b299f0ca963988cce780006fe7061b13455868. 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/USA560440015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db0f3e86291985de4023d012a67b2854722c3810193247c6090dab363a11614. 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/USA560440017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7237a50b9eeaa24df0664beb432fb227a19552214f4ab035d196236e32632a. 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/USA560440019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4579cd711bd8312fa0db17aef933e1d8db3959cfea944d320f1e56dff7d27665. 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/USA560440020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a980ac7e7e15df74545971b3b0cbb6fe7c1023d5024ee45f28b1959153d256. 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/USA560440022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420ff03e687cfa2aa8994a5a7c217527c18fb63dce4a784f1e43bd116d851d15. 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/USA370527583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98411328475f14062cd0728864baa90ea658a372cb0f57c5ba45c33e98f2952. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:47:43Z), 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/GRFM19700462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f7172914fbcfba3782cb35bf4117b2374cc0aba2ca2dd02119c8735d289911. 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/FR6F31385040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcf5d8f1203bbf7bb579d398b555eb601a3e1403f7b9240103e750e713e2372. 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/FR6F31922850.