thumb|Nikos Gounaris Nikos Gounaris (; 1915 – 5 May 1965) was a Greek tenor who was enormously popular as a light music singer in the 1950s. Biography Gounaris was born in 1915 in Zagora. He began p
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 0xcaf1eb9096eb118185d0bf0cd716e5d22d241c93922d76027dce9d781636442e. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e19f20ed-9d4f-451c-878a-f7f5f9a30f16.json and https://artists.proofprofile.net/proofs/artist/e19f20ed-9d4f-451c-878a-f7f5f9a30f16.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 0xdddc49a993a92371af5a64f05a9d44724f68040787a99c3ee623f30be1b1d12d. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/US6R21201637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57960209ed8317a39686a36914455293019336da16bea0688e124e8b2eee698. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US6R21201638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f91c79c713dba064fcd33ecebfbe1b88b40b46a6de7ed9ef1f9447b651d81ef. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/US6R21201642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a4926483466d9c6673321cb04805b559e6b675e623eefdd32f7191ee26a5f5. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USA371663260.
Mi Mou Thymizeis Ta Palia (Recordings 1936-1940)
Gia Tis Gynaikes Zoume (Recordings 1953 - 1956)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e502a3dad886c55e04ab4dedf4aa9c7eaee93a31b6fb64fd293a7f117bcd26c. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/USA371663220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621d1a71845cb83d98644e3a555e7fbf3d1f3e7852a19656d7c5b6f2eea1d090. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USA371663241.
Tora Pou Se Gnorisa (Usa Recordings 1950-1965)
Best Of (1946-1964 Authentic Recordings)
Thelo Nasai Eftyhismeni (His Last Greek Recordings 1960-1965)
Gyrna Pali Agapi Mou (His Last USA Recordings1960-1965)
Best of American Recordings (New York - Chicago 1948-1964)