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 0x9ef2745985a912b31d9fc1871294fa53dbf80e6d7c0ff5332ab88e11407ec01a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43f6d054-09c5-4425-ac3a-5b1a86b56e0f.json and https://artists.proofprofile.net/proofs/artist/43f6d054-09c5-4425-ac3a-5b1a86b56e0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ik Ben Nou Nog Springlevend (Voor Ik Oud En Wijs Zal Zijn)
{"copyright_id":"0x398efa397ff99f54076db5a0c205ebe80bb7eb95e158f16d5473d33d22e68ca4","isrc":"NLA306900136","name":"Ik Ben Nou Nog Springlevend (Voor Ik Oud En Wijs Zal Zijn)","registered_at":"2026-06-24T19:54:59Z","spotify_id":"4vW7cOCf2czMn0IazFplP1","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 0x398efa397ff99f54076db5a0c205ebe80bb7eb95e158f16d5473d33d22e68ca4. 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/4vW7cOCf2czMn0IazFplP1.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/4vW7cOCf2czMn0IazFplP1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbfeb18a7902857ccdb791c0ea40ca72cc85f3e65a52a281ed2b9b7e3266775. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/708sn1OAsULP6HoauPxmqc.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/708sn1OAsULP6HoauPxmqc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bb61827d6919a1321734cf50b3f268f364cbc9de61717aaea451783562c2d4. 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/5MPqk6gIXz0G6xWSVVaBy5.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/5MPqk6gIXz0G6xWSVVaBy5.
{"copyright_id":"0x69e0b55a7ded0449e8f86110bf9fb1f341607095cdf3a8286a27cecd1c201071","isrc":"NLA307100005","name":"Vluchten Kan Niet Meer","registered_at":"2026-06-10T19:41:28Z","spotify_id":"2FUwyzcd4IveujPTuygjRH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e0b55a7ded0449e8f86110bf9fb1f341607095cdf3a8286a27cecd1c201071. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2FUwyzcd4IveujPTuygjRH.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/2FUwyzcd4IveujPTuygjRH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f591eb4275e7bce197f79a8f402f7541e265a91c24237eedaff54f50df54f6e. 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/5oSNx87hsjk0Nz0pdQcdct.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/5oSNx87hsjk0Nz0pdQcdct.
Als Er Iemand Op De Wereld Is (Dan Ben Jij Het)
Elke Avond Als De Beeldbuis Is Gedoofd (Na De Televisie)
...Wat Je Zegt..., Dat Ben Je Zelf (2 / Live)
...Wat Je Zegt..., Dat Ben Je Zelf (Live)
Voor Een Briefkaart Op De Eerste Rang - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b46a53ebe7970f34c8f61c9548a0f8a37034746f896551af0eacf82b7771d5. 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/35ekM28eOGLIeykM1tj6e4.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/35ekM28eOGLIeykM1tj6e4.
Bedoelde Je Die, Bedoelde Je Die daar ? (Instrumental)