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 0xda1c11d63d469d08bac72fadf96e9f84677a10898bf7516788629cf83eb1a3b6. 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/609a9b75-276e-477b-8bc5-dcb080c5f789.json and https://artists.proofprofile.net/proofs/artist/609a9b75-276e-477b-8bc5-dcb080c5f789.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 0x5295bd8488e910003a32229cacf8e4e32f5017518526e5c47c972bf352637972. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1PQJ4qmh0jT1xWzG8b6POv.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/1PQJ4qmh0jT1xWzG8b6POv.
Changanya (feat. Marioo and Aubrey Qwana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a17ba6040f543b71490304a4b3661ab3d18eaebb57b3d98e1b1b3585f32ee70. 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/7J7CVweI3oRJzpeHzBJvmb.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/7J7CVweI3oRJzpeHzBJvmb.
Tsha Dovha (feat. Makhadzi & Manu WorldStar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df5010806c4c57f6ef47d96b8507307667504a888c7d955d45ec47d5574de54. 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/6qaRAEwQ7rQ6Qd1kwBEqWK.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/6qaRAEwQ7rQ6Qd1kwBEqWK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0035d6a090a15c096eca00c2cb06a4d0b2be602036109b3d23be06173d4c6e61. 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/5OXLaM1mXAJQXD0MTCKLdD.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/5OXLaM1mXAJQXD0MTCKLdD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fab23da4f3a1bee9408fb6fad49004a0d32b3b89a9fd70693073b3c74b345db. 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/7uCZS4CvRnEEusfVdhFhHw.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/7uCZS4CvRnEEusfVdhFhHw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc4049348d3e2c44c198d698e848c1f9be08495a64c41d8a0a160273aa0ac98. 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/3U3dbLzZ4x1ALPZtz2NiKf.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/3U3dbLzZ4x1ALPZtz2NiKf.
Tongue Foo Action / Forever (Petite Noir's Interlude)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9804cd65605eb59a379a3abfa97f2e9201af42b0044b4c2f713adcc19fccde2. 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/25sVYpu1A1pkziBjh9WzGy.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/25sVYpu1A1pkziBjh9WzGy.
KPK (Remix) [feat. Sho Madjozi & MohBad]
{"copyright_id":"0xbda4ad8d1a78648eb1adc9b7661fd78baf9875b85686406837135bb6a1e95282","isrc":"ZA56E2100805","name":"KPK (Remix) [feat. Sho Madjozi & MohBad]","registered_at":"2026-06-08T11:55:37Z","spotify_id":"35RxQctn6oTy3Z0W8YLsyW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda4ad8d1a78648eb1adc9b7661fd78baf9875b85686406837135bb6a1e95282. 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/35RxQctn6oTy3Z0W8YLsyW.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/35RxQctn6oTy3Z0W8YLsyW.
Box Of Stars Pt. 1 (feat. Kirk Franklin, CHIKA, D Smoke, Sho Madjozi, Yelle & Kanyi Mavi)
{"copyright_id":"0x0d48f790f0ee9712e9d7a0fc66f4d8352990014afa4729066400186e71510dfd","isrc":"GBUM72310488","name":"Box Of Stars Pt. 1 (feat. Kirk Franklin, CHIKA, D Smoke, Sho Madjozi, Yelle & Kanyi Mavi)","registered_at":"2026-06-05T11:31:30Z","spotify_id":"2kt92tzyBCHM8JvclJgOui","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d48f790f0ee9712e9d7a0fc66f4d8352990014afa4729066400186e71510dfd. 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/2kt92tzyBCHM8JvclJgOui.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/2kt92tzyBCHM8JvclJgOui.
{"copyright_id":"0x0d48f790f0ee9712e9d7a0fc66f4d8352990014afa4729066400186e71510dfd","isrc":"GBUM72310488","name":"Box Of Stars Pt. 1 (feat. Kirk Franklin, CHIKA, D Smoke, Sho Madjozi, Yelle & Kanyi Mavi)","registered_at":"2026-06-05T11:31:30Z","spotify_id":"57yvq1ThmT4PYWa8iaK4GJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d48f790f0ee9712e9d7a0fc66f4d8352990014afa4729066400186e71510dfd. 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/57yvq1ThmT4PYWa8iaK4GJ.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/57yvq1ThmT4PYWa8iaK4GJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d943d58baf89666cc3908153ad475079807bbf3417942e76a804d2255f7577. 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/1Fi6OAvtGd77hv7Ju5sd4R.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/1Fi6OAvtGd77hv7Ju5sd4R.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc614392845b6463443389b8684513ef87799087d243ce106e3cb6afe302a2e08. 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/4aSYvsAXxFDGtp85vZ39Ce.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/4aSYvsAXxFDGtp85vZ39Ce.
{"copyright_id":"0x3cc4049348d3e2c44c198d698e848c1f9be08495a64c41d8a0a160273aa0ac98","isrc":"ZAUM72000271","name":"Disco Matanga (Yambakhana)","registered_at":"2026-06-08T01:42:37Z","spotify_id":"3bxO3oqXtAyTAPq3kr8QRf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc4049348d3e2c44c198d698e848c1f9be08495a64c41d8a0a160273aa0ac98. 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/3bxO3oqXtAyTAPq3kr8QRf.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/3bxO3oqXtAyTAPq3kr8QRf.