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 0xfd825fff4c95822982070af046db7dea00b1522f6cd9a24759a34fbdc55cf3d2. 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/e0993a4d-4e8b-4543-a1f4-090a7f69b239.json and https://artists.proofprofile.net/proofs/artist/e0993a4d-4e8b-4543-a1f4-090a7f69b239.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
To Będzie Dobry Dzień – SKY SESSION - SKY SESSION
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 0x1356a1f216f7181307027e0c452d6566ad3f81f0884d02ff593421c97912dcfe. 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/7jfmUcIxrhJWXyd18rE26L.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/7jfmUcIxrhJWXyd18rE26L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7a510d0e5fa47216ef0420b81395b10d5289a5ecf6bd479ca4513a45d1c8fc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/35Nxy2gPAVIzSTXPVveZsB.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/35Nxy2gPAVIzSTXPVveZsB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a025897262e096433492a1bba24f2da10458ed5534559d713a9631ceccabc90. 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/15PYNDkvnhiyqXlEfh9OMW.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/15PYNDkvnhiyqXlEfh9OMW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd117012075abc2af265615da902175b7e917cad5ceba9f01160c18c2e55eb0a4. 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/5pG50zmrJqFSXz6F0oGEww.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/5pG50zmrJqFSXz6F0oGEww.
{"copyright_id":"0x07fa4b0dab32fa37033340b690dacb06a08c34af7411ce2149f322ca06fffe40","isrc":"PLUM72000344","name":"Daj Mi Znać","registered_at":"2026-06-04T08:23:42Z","spotify_id":"0zIdhYjLchhi2og7EfPQ4r","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fa4b0dab32fa37033340b690dacb06a08c34af7411ce2149f322ca06fffe40. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0zIdhYjLchhi2og7EfPQ4r.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/0zIdhYjLchhi2og7EfPQ4r.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370b03e719dbe6f8671a8a03bdf65620ca6323f77ef8de23ff6d038660cdc76e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6NzrRwHTM9GO0IufXuabgL.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/6NzrRwHTM9GO0IufXuabgL.