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 0xa21d6d7d4a6302715cd0b659787bcebb07ebb7949182e85f4a1a119f19499e73. 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/857cb50a-2b45-40a8-b34f-0f4941d94f3f.json and https://artists.proofprofile.net/proofs/artist/857cb50a-2b45-40a8-b34f-0f4941d94f3f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Gia Mia Kapsoura Zo (Dj Kambi Official Alitis Mashup)
Gia Mia Kapsoura Zo (DJ Kambi Alitis Mashup)
Gia Mia Kapsoura Zo (Giannis Kritikos Intro)
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 0x474e721d6f195f9be04a3c8f0acc835ba27903687207eaa6d27761f8e6fd5554. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1780443 — a six-check JSON result.
Mia Fotia (STAiF & LM3ALLEM Official Remix)
Ta Kalytera Paidia Ehoun Psychologika (Telkis D Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaaafe3f55262c1880ac7e9dd2c506a2803c548beb8f41f6892d9b437324da0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41857772 — a six-check JSON result.
Xameno Kormi (Vasilis Koutonias Official Remix)
Xameno Kormi - Vasilis Koutonias Official Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056e1e761467461949484e8c9cd00a7bfa9c3e50b64ddcfa0c514e6150f172f9. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201842016 — a six-check JSON result.
Ta Kalitera Paidia Exoun Psixologika (Official Remix 2019)
Ta Kalytera Paidia Ehoun Psychologika (DJ Antonio Tzilios Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560c2fe58bac191eb723279e4fc200b01b465e08918735ebe51b3667a2770a61. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRDR11900019 — a six-check JSON result.
Ksenoi Apo Edo Kai Bros (Club Intro Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd9ad700e315832f6d840989695a534dbb9c57f392b4a64d7797beea2a98fd9. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRDR12000031 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f2482a138e9f54f93a0ce15a3e2cf8da248578f7cfa2367611daf26881cbeb. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRDR12000035 — a six-check JSON result.