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 0x17b2e9f88a1f5e5a7baf81b4f45067978f7a54bf4ae3ecace6e811565f9f824c. 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/db7edbd4-9453-4e05-8ea8-65d4d79c9a72.json and https://artists.proofprofile.net/proofs/artist/db7edbd4-9453-4e05-8ea8-65d4d79c9a72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lonely For You Baby - Lack Of Afro Remix
{"copyright_id":"0x59ead189340a805e6bb612e59df5df1dd3cbe6a04cdf6009668da82ff7ca2489","isrc":"QZAKB2326838","name":"Boots In Place","registered_at":"2026-06-10T03:28:10Z","spotify_id":"47gSXRSECjAFpKvnDjw5iG","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 0x59ead189340a805e6bb612e59df5df1dd3cbe6a04cdf6009668da82ff7ca2489. 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/47gSXRSECjAFpKvnDjw5iG.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/47gSXRSECjAFpKvnDjw5iG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ade888722213f8a196d717092db3e325d8b8ccfe819a0a7a341f1650c877d00. 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/23f0Mc6EIjxqDRiu3ASHq5.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/23f0Mc6EIjxqDRiu3ASHq5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40198a80866d2f2454456b39c29b33cd87104a54357d6e5fa38ae719b03eb5ba. 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/27mH8qX3RLWVaIjq7fZVx5.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/27mH8qX3RLWVaIjq7fZVx5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e398e2038394f3d6381530019c4b2090c45234c7a0578633f753134973d4b56. 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/3ibNcOlMpCAjAjk7lgJHPh.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/3ibNcOlMpCAjAjk7lgJHPh.
{"copyright_id":"0x77c56d0ce7d6cda8371aa1f30731ded99976a3ad608140de2c53756879171f7a","isrc":"QZJZC1900427","name":"Sleep Depraved","registered_at":"2026-06-07T18:35:33Z","spotify_id":"4KGPk8tcnfjwCGkyDDaVvp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c56d0ce7d6cda8371aa1f30731ded99976a3ad608140de2c53756879171f7a. 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/4KGPk8tcnfjwCGkyDDaVvp.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/4KGPk8tcnfjwCGkyDDaVvp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e19d83f971f88b925347e7c343ea55182b0a8ffe4508d315d45ec1c97b7e247. 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/2vkM6oTkulGbAmA7GzNn6o.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/2vkM6oTkulGbAmA7GzNn6o.
{"copyright_id":"0x093abff2398289c49ec69db3b6bbe7ebf0a084fc3fd32dd17f3be96ae4b80939","isrc":"QZJZC1900429","name":"Bobbys Boogaloo","registered_at":"2026-06-06T16:02:41Z","spotify_id":"2P2wldPnxZo96BLVJEavQw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093abff2398289c49ec69db3b6bbe7ebf0a084fc3fd32dd17f3be96ae4b80939. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2P2wldPnxZo96BLVJEavQw.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/2P2wldPnxZo96BLVJEavQw.