Nikos Karvelas (; born 8 September 1951) is a Greek musician, composer, singer, songwriter, record producer and author. He has sold millions of records as a producer and is most recognizable for his f
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 0x03c68139e0f5633cf98e6e11ffac0a57baae370f36f216f636431267e63f432c. 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/b3d05d83-b205-4616-b43d-6a26b56100d1.json and https://artists.proofprofile.net/proofs/artist/b3d05d83-b205-4616-b43d-6a26b56100d1.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 0x40cfce5f4732330ec6af520755d4a6b0d0acb8172cf7d582812f999716bdb465. 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/GRS019000212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6602361b7709aa516f69e19310b6d33f19f2165adba154050282a0ea7eeb1b. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GRS019800137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1c5e17645b4b1c2aeb72dae0a28e22751e929867c0af9df63a3eff032571e9. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GRS019800139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe39b374a94f09d91f1bfdb2556cae695ff3d1b6cd2bb86922a0138b31c81d99. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/GRS018900098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6dd717bce9ff7331d2fbf148c95226dc3c0913682583147876a66639831a90. 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/GRS018900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8133c44bb8e99f049764a3b3dca76ab58d447bf57c8ef11c6fb640e44589a2a. 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/GRS018900099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561f27ff74e4bf0b9548713ded15bb98ddbdcd08482705ce0d549259d0a5ab4d. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/GRS018800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d916f1ea109004bb2c3996e1a21d46dcbef2097d17134765f00da523c89f2c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GRS018700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e74aeb839bc81657ce44768dd99facefd9ca5fa9228307eff7f2bc8a202f7af. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GRCB12200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759034f3fcdeb1388cf366e2ab87d091e231056491f7bd0409542f4f0f605a65. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GRS019200143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86e9bf624aeecc82207a37b9f3d74837e56ff646d4ded60bb63ca7ebd49a108. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GRS019200119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab609cf0b8f9ea033311f6f81b1a48805b9cc2f87524e9e829161d325b6c8e4. 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/GRS018600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d916f1ea109004bb2c3996e1a21d46dcbef2097d17134765f00da523c89f2c. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GRS018700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e842a9488a9ba4970df258bacdd8b516ac2d5dc9a6c99fe06f9d5d26f54a1d. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/GRS018700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a91fe56b68f6fb906a17683c14a192cd05a449418d4bc843add3292fa212ac. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GRS018700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0270a4cb345696260f82ce8b62a0d6868379bbff530f94a7db7b743f90b13a. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/GRS019500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421201add0c58e37f671e6c2b87af5c2d8f23498097171d90d33776d17eeef61. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/GRS019600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5817c27e6a3fdeb3156d4189da688119b2f4bb23846494807428e2b617b958a. 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/GRS019600134.
O Pio Eftihismenos Anthropos Pano Sti Gi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc837c61f25415958107c7ebcc67799d69d1ef4c54231d2726977e5daf5ddbae7. 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/GRS018600005.
As Min Poume … Tipota (Apo Ti Rock Opera Tou Nikou Karvela I Kabanes Tou Edelweiss)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f62cd1559fb67c14f703f261c99ae60556b25cd8df1888af6d367788ca1617. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/GRPA12400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d6a24ab3d2c531d970d15abbc4863785709e7ad3003941bf6ac7b0910bc239. 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/GRPA12400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd8434b913bd9e41d1c5f58d13aa3c83e5a35e4c70161d64817817f482a5616. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GRPA12400333.