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 0x100572586dd0d8d443d20fa7184ba4b572fc0adac9912fefdae571134fbb6ba3. 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/82bdb8ed-ba1b-4c83-a1ab-9f6c1ea63d20.json and https://artists.proofprofile.net/proofs/artist/82bdb8ed-ba1b-4c83-a1ab-9f6c1ea63d20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x25b2365b44f2b326191265b6b1962fbf294a5bd9e936166253304b7c5e28c92d. 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/6NHBiUOcTqv6FWhbUt0mEa.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/6NHBiUOcTqv6FWhbUt0mEa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d853e71c7d0776fb89b0d8434bdde1ce12db35d2490d2595b89298fa33e76ed. 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/0nlpl4YgBTTtqgHaS5Wjna.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/0nlpl4YgBTTtqgHaS5Wjna.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485389694c2174d21c1c515c3ef34340fdd468ae6c810ad21d938977c09a9bf5. 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/1Hhduw5dFcPXdpOdOc7Xcd.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/1Hhduw5dFcPXdpOdOc7Xcd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2928412b2828397b6cfb76255ee4a2278d297ccfb7d0102c546823d5056148fe. 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/5UDEyLZV6j9TriormOk2fB.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/5UDEyLZV6j9TriormOk2fB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50953a0daa4a1670b8a69d60928ea2dd5baa73ae75f5bd5811df884f7ce8224c. 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/4KwM5dhjaC2B7SDmeF5UoC.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/4KwM5dhjaC2B7SDmeF5UoC.
{"copyright_id":"0xbcb6e6b883ac20c27a367c52cb36ef2466cd086eaf64de752c11fc9b667314d1","isrc":"QM24S1921828","name":"Product of my Enviroment","registered_at":"2026-06-10T03:45:26Z","spotify_id":"4FNjq8PKoTsLFrIzlHIIGK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb6e6b883ac20c27a367c52cb36ef2466cd086eaf64de752c11fc9b667314d1. 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/4FNjq8PKoTsLFrIzlHIIGK.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/4FNjq8PKoTsLFrIzlHIIGK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfe2ae81fa21671fb0f5d9c9ebb2535dc96a10563f5f9936924532bfff5644a. 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/6RPvUvHgh8sT09mVEIvM9R.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/6RPvUvHgh8sT09mVEIvM9R.
{"copyright_id":"0x82be436a2ce55bbbc9ebc4f0d4d24d0f9baa66a3a8650f37d6005b53bcef2adf","isrc":"QM24S1921830","name":"No Pressure","registered_at":"2026-06-24T14:26:35Z","spotify_id":"1etnGJKt8RMkVXid4z3ZcQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82be436a2ce55bbbc9ebc4f0d4d24d0f9baa66a3a8650f37d6005b53bcef2adf. 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/1etnGJKt8RMkVXid4z3ZcQ.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/1etnGJKt8RMkVXid4z3ZcQ.
{"copyright_id":"0x47891defc9fa948cfad089464e9b95f5c0b61978d3e8eb892dfc4dbd70da20d8","isrc":"QM24S1921832","name":"Lights, Camera, Action","registered_at":"2026-06-18T15:26:33Z","spotify_id":"01Z6M1cV8svqj4N98OlYbD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47891defc9fa948cfad089464e9b95f5c0b61978d3e8eb892dfc4dbd70da20d8. 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/01Z6M1cV8svqj4N98OlYbD.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/01Z6M1cV8svqj4N98OlYbD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12355a246b933a72cfc1556d1656f8bb8d2e27dfdcc4189e1b74d9946cc7bc8b. 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/0tSH5wZhk3nGbcZZf3UtgZ.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/0tSH5wZhk3nGbcZZf3UtgZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c045bfff8e609e24cbc9dcf9268185e951f539b06b9054b0bc1a421c1a9921. 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/1z8rNaj4tK4foTSom1WIUB.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/1z8rNaj4tK4foTSom1WIUB.
{"copyright_id":"0x20bbfb87d2db9e9224f3cc15d38c79554bca6ae1e63016b703036cef153e48ea","isrc":"QM24S1921835","name":"Ride For Me","registered_at":"2026-06-11T05:39:41Z","spotify_id":"1ZlRWSkDoyQclCErhorEpS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bbfb87d2db9e9224f3cc15d38c79554bca6ae1e63016b703036cef153e48ea. 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/1ZlRWSkDoyQclCErhorEpS.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/1ZlRWSkDoyQclCErhorEpS.
Make You Sick (feat. YNW Melly & Foolio)