1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7612742bf5a190a7fbc53716db5849be542332cc97c1e212b134e4eedfccb4c4. 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/82b0a4e7-2846-4df2-b949-87e848e5e600.json and https://artists.proofprofile.net/proofs/artist/82b0a4e7-2846-4df2-b949-87e848e5e600.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x3d842b611ae0fe9e279586baf93112a315e9ff561ba9beea43d0503c89f0e5a6","isrc":"GRPO10021998","name":"Na Sou Kano Mia Erotisi","registered_at":"2026-06-29T18:04:56Z","spotify_id":"5n28Fu9vGA5A7wixaLSRFX","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d842b611ae0fe9e279586baf93112a315e9ff561ba9beea43d0503c89f0e5a6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5n28Fu9vGA5A7wixaLSRFX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5n28Fu9vGA5A7wixaLSRFX.
I Katerina Stanisi Tragouda Rita Sakellariou
Taksimi / Ine Eftihis O Anthropos - Live
Stamatise Tou Rologiou Tous Diktes - Live
Ti Foni Tis Kardias Mou Tha Akouso - Live
Den Perimena Apo Sena Na Timoritho - Live
Ta Afthentika - Eleni Roda, Katerina Stanisi
Stamatise tou rologiou tous diktes - Live
Ti foni tis kardias mou tha akouso - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a62bdfb2879050b783315258ac731d842a2de09b93dec3b139b8d71045da01. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2dm0j1XH3ica9wxXw6QkaC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2dm0j1XH3ica9wxXw6QkaC.