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 0xdcd9f2c5048eb454f24b9c00ec1241fbdca79e3e92805908f2b87973e14002d7. 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/d8729ab4-bcfb-4340-9143-1bef52256d94.json and https://artists.proofprofile.net/proofs/artist/d8729ab4-bcfb-4340-9143-1bef52256d94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ta Logia Kommatia - Live From The Mad Awards, Greece/2012
{"copyright_id":"0xe801ccfe6b9eed885c45470a20403dc9ac36caf57bcfdcc7d0e3d0aad752f1f2","isrc":"QMBZ91518390","name":"Paraxeno Paidi","registered_at":"2026-06-28T19:40:17Z","spotify_id":"4fWP9SSwP8p1WnWlZY6RqP","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 0xe801ccfe6b9eed885c45470a20403dc9ac36caf57bcfdcc7d0e3d0aad752f1f2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4fWP9SSwP8p1WnWlZY6RqP.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/4fWP9SSwP8p1WnWlZY6RqP.
{"copyright_id":"0xe801ccfe6b9eed885c45470a20403dc9ac36caf57bcfdcc7d0e3d0aad752f1f2","isrc":"QMBZ91518390","name":"Paraxeno Paidi","registered_at":"2026-06-28T19:40:17Z","spotify_id":"08wuwadXcG12pSjBS910a9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe801ccfe6b9eed885c45470a20403dc9ac36caf57bcfdcc7d0e3d0aad752f1f2. 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/08wuwadXcG12pSjBS910a9.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/08wuwadXcG12pSjBS910a9.
Kati Teties Nixtes (Zafiris Logothetidis Remix)
Kati Teties Nixtes - Zafiris Logothetidis Remix
Mikros Titanikos (Se Latrevo) - Unplugged Live
Se Thelw Edw (Otherview & Sergio T Remix)
Se Thelw Edw - Otherview & Sergio T Remix
{"copyright_id":"0x82d94d73466fc3a80db56acf0bb63491f3aa648aa521c13a1facc085ad81575f","isrc":"GRPA12100381","name":"Den Ftais Esi - Remix","registered_at":"2026-06-22T22:31:47Z","spotify_id":"3ZXtPFz0eSgaiNAyOE4YEW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d94d73466fc3a80db56acf0bb63491f3aa648aa521c13a1facc085ad81575f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ZXtPFz0eSgaiNAyOE4YEW.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/3ZXtPFz0eSgaiNAyOE4YEW.
Panik Concert 2023 By Opaponlinegr (Oi Panik Superstars Live Sta Megalytera Hits Tis Hronias)
DJ Krazy Kon Presents Greece Mix, Vol. 23
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd623e97642e0607ee555715fc7f47fa9ca6c083e308bf8bcd04750afe79d7b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2M94MbCk599A3kqG9Wm8DX.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/2M94MbCk599A3kqG9Wm8DX.
Chef Aid: The South Park Album (Extreme Version)
{"copyright_id":"0x3f6c43fab3e445b8f4ac8294a8416ea5f2d42be10a548d5adddaa7089f529c24","isrc":"USSM19805189","name":"Bubblegoose - Remix / Extreme Version","registered_at":"2026-06-22T23:37:17Z","spotify_id":"6B9AFVv05GUM1jn1rW46Zf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6c43fab3e445b8f4ac8294a8416ea5f2d42be10a548d5adddaa7089f529c24. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6B9AFVv05GUM1jn1rW46Zf.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/6B9AFVv05GUM1jn1rW46Zf.