Giorgos Papasideris ( 14 September 1902 – 8 October 1977) was a Greek singer, composer, and lyricist. He was born on Salamis Island. After leaving elementary school, he spent his entire career working
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d12c33a29c7662ccd1363035d65ada1e97e1d5df4ec37f21f016139039c92e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f43e257-d5d6-4906-8bf4-84e866e3b4a7.json and https://artists.proofprofile.net/proofs/artist/6f43e257-d5d6-4906-8bf4-84e866e3b4a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Giorgos Papasideris, No. 3 Ta Propolemika Dimotika No. 15
Giorgos Papasideris, No. 2 Ta Propolemika Dimotika No 14
Giorgos Papasideris No. 5 Ta Propolemika Dimotika No. 17
Giorgos Papasideris, No. 4 Ta Propolemika Dimotika No. 16
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7ab8899950cf23a9fcfae526efec9fed95adc4bd97038f653ad674ca727f37. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USA561437309.
Giorgos Papasideris, No.1 Ta Propolemika Dimotika No. 13
TA PROPOLEMIKA DIMOTIKA No 35 GIORGOS PAPASIDERIS No 8 ATHANATA DIMOTIKA APO DISKOUS GRAMMOFONOU
I Megali Tou Dimotikou Tragoudiou (Vol. 4)
I Megali Tou Dimotikou Tragoudiou (Vol. 5)
Dimotiki Paradosi, Vol. 3 (Tsamika - Syrta - Kalamatiana)
14 Megala Tragoudia - Giorgos Papasideris
O Korifaios tou Dimotikou Tragoudiou, Vol. 1
Na San Ta Niata Dyo Fores (Original Recordings from 78 rpm)
Se Oraio Perivoli (Original Recordings from 78 rpm)