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 0x41b0a645ad082fef0c4c1a6f8761a8ea5f41397a9dea2aed21b656251f3c7bd6. 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/03f713fe-2c9d-4380-91b0-e9b634d511e3.json and https://artists.proofprofile.net/proofs/artist/03f713fe-2c9d-4380-91b0-e9b634d511e3.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67590669d80543599314c585b82cef0b5056d5de23f3cc4b7f5279a20c1258e4. 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/USCHR1372904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4814d023cf70bf1bbd5f7a3e078df0ac8b075b3a0fdce9a82a44885ed89b9ced. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GRE016100131.
I Pio Megali Ora - 46 Afthedikes Ihografisis (Remastered)
To Elliniko Tragoudi (14 Megales Epityhies)
San Ta Poulia Sti Mpora (All Songs by Babis Bakalis)
To Plataniotiko Nero (Songs by Klouvatos, Stellakis, Hrisinis, Bayanderas, Hrisafakis, Margiolas)
Eisai i Novokaini (Songs by Karapatakis, Kolokotronis, Kazantzidis)
Nyhtose Horis Feggari (All Songs by Apostolos Kaldaras)
Mia Fora Gennithika (Songs by Smirneos, Kapnisis, Vellas)
To Melachrino (Songs by Lafkas, Petsas, Kaplanis, Tatasopoulos, Tzouanakos)
Matia Mou Agapimena (All Songs by Thodoros Derveniotis)
Iliovasilemata (Songs by Tsitsanis, Papaioannou, Hiotis, Mitsakis)
Pes Mou Giati (Songs by Attalidis, Derveniotis, Virvos)
Kapetanie Mi Salpareis (Ta Tragoudia Amerikis & Aystralias)