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 0x5f9c5d1a05d4d434abcb6c10c12af731e0c91112b48bef58928ec546bcebb804. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7e29f4f-e05e-401e-9e44-36c1baa4abbb.json and https://artists.proofprofile.net/proofs/artist/f7e29f4f-e05e-401e-9e44-36c1baa4abbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Prologue (feat. Atiena, Jacob Samuel, ThisisDA, Eric Sings and Pure Water)
{"copyright_id":"0xbc2453c541de9b4568c028d028df5aae80a887cf0bfa2e690d1aff54a29d7c19","isrc":"QZS7J2420371","name":"karmic freestyle","registered_at":"2026-06-20T12:47:29Z","spotify_id":"2yL39BKZuOWHUVGpjBSo4K","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 0xbc2453c541de9b4568c028d028df5aae80a887cf0bfa2e690d1aff54a29d7c19. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2yL39BKZuOWHUVGpjBSo4K.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/2yL39BKZuOWHUVGpjBSo4K.
{"copyright_id":"0xbc2453c541de9b4568c028d028df5aae80a887cf0bfa2e690d1aff54a29d7c19","isrc":"QZS7J2420371","name":"karmic freestyle","registered_at":"2026-06-20T12:47:29Z","spotify_id":"0xcxALORhwzSBLgotB55JM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2453c541de9b4568c028d028df5aae80a887cf0bfa2e690d1aff54a29d7c19. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0xcxALORhwzSBLgotB55JM.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/0xcxALORhwzSBLgotB55JM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056e4778c1c7afaaa9c0d96c1d26f2a5bd0fb246d5218a8edb43abf990b3d8bd. 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/6zlvr9ulO9nrh6jx2oPjuY.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/6zlvr9ulO9nrh6jx2oPjuY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12680d0a4dbb857753f59b6b08e71790267312802477b2903c214653e6956ec3. 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/19j22SfdYyULnGpTxoZJ9f.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/19j22SfdYyULnGpTxoZJ9f.
{"copyright_id":"0x5af75662537f898c9d4eabd74ea6da36626cf803f31add7b224a6d8233cb9f9e","isrc":"QM24S2206757","name":"Ipari Park","registered_at":"2026-06-04T16:05:21Z","spotify_id":"2ZdG0AMgHunnhkhSCNuiqt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af75662537f898c9d4eabd74ea6da36626cf803f31add7b224a6d8233cb9f9e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ZdG0AMgHunnhkhSCNuiqt.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/2ZdG0AMgHunnhkhSCNuiqt.