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 0x83c9b4d972b2ac7ec857ef45da6fa785f416477516918f4bf2e86ee00f8eae13. 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/f934937f-165e-4f80-a978-0222fe1296e0.json and https://artists.proofprofile.net/proofs/artist/f934937f-165e-4f80-a978-0222fe1296e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x892fb0eb50c8c6a471d2c89af60c97a81fd8d2bdb31cda5351093af0eee21c0b","isrc":"BEZ050200031","name":"Piet Piraat","registered_at":"2026-06-20T10:38:26Z","spotify_id":"51w0fxw1L8XZclPhoxkxOM","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 0x892fb0eb50c8c6a471d2c89af60c97a81fd8d2bdb31cda5351093af0eee21c0b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/51w0fxw1L8XZclPhoxkxOM.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/51w0fxw1L8XZclPhoxkxOM.
{"copyright_id":"0x3248bf07d30f3384f7b01331cd8189ffcf8c3e8e13ef2c4ddcbbdaddcc8c6ca4","isrc":"BEY900300048","name":"Storm Op Zee","registered_at":"2026-06-23T13:04:37Z","spotify_id":"46JikvAJIjiClivFTwwAs1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3248bf07d30f3384f7b01331cd8189ffcf8c3e8e13ef2c4ddcbbdaddcc8c6ca4. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/46JikvAJIjiClivFTwwAs1.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/46JikvAJIjiClivFTwwAs1.
De zeldzame junglebloem - Voorleesverhaal
{"copyright_id":"0x3248bf07d30f3384f7b01331cd8189ffcf8c3e8e13ef2c4ddcbbdaddcc8c6ca4","isrc":"BEY900300048","name":"Storm Op Zee","registered_at":"2026-06-23T13:04:37Z","spotify_id":"5AcN6n3LFewZvQB8tl32rG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3248bf07d30f3384f7b01331cd8189ffcf8c3e8e13ef2c4ddcbbdaddcc8c6ca4. 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/5AcN6n3LFewZvQB8tl32rG.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/5AcN6n3LFewZvQB8tl32rG.
{"copyright_id":"0x892fb0eb50c8c6a471d2c89af60c97a81fd8d2bdb31cda5351093af0eee21c0b","isrc":"BEZ050200031","name":"Piet Piraat","registered_at":"2026-06-20T10:38:26Z","spotify_id":"7awAOLIOWtxBFNMT1MSLfz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892fb0eb50c8c6a471d2c89af60c97a81fd8d2bdb31cda5351093af0eee21c0b. 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/7awAOLIOWtxBFNMT1MSLfz.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/7awAOLIOWtxBFNMT1MSLfz.