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 0x57b8a68dc73d845e4d7315cf931838e480e2c012568b1f9e64cc6822ee3afe11. 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/2200b624-e952-4b46-945e-d448e8e506b5.json and https://artists.proofprofile.net/proofs/artist/2200b624-e952-4b46-945e-d448e8e506b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Time (ft. Teasha Huns) (Protostar Remix)
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 0xc083db7869cd4d299735120969bdaf5adc49499241f98c0dc3e137d841551e6e. 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/1fLbXvIyEUKicyDAp3uwJE.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/1fLbXvIyEUKicyDAp3uwJE.
Rocket League: Sideswipe (Original Soundtrack), Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f2737ed86639cea6f3593f67883debaf26af2f820689b32d11d22d2b5cf38c. 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/7EWwtGcmfxeV388joHQX36.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/7EWwtGcmfxeV388joHQX36.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d46559b7176f7b2efd91b0280e861a29ac8325a61b42025d31a23d41307da1. 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/5dKg6JF0Hd3nTZACVtv2U9.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/5dKg6JF0Hd3nTZACVtv2U9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ce4afe7fb9467171f32f32913492939c0ca4c4a11c4716c50b2887e919eca1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4WRc4ejQd5R5GzbHT6yc6v.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/4WRc4ejQd5R5GzbHT6yc6v.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1347b5fa86b8cc007aa5ac74c231d92ff98e704f6875f0597d8a5202930b2e3. 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/2TkY5AstkgVddcKKFVcb4v.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/2TkY5AstkgVddcKKFVcb4v.
{"copyright_id":"0xe8b885a62733886ee539a3c3cd2eb32307879cf22cb04a41cc30bfafa144b894","isrc":"USA2P2126995","name":"Drown - Protostar Remix","registered_at":"2026-06-23T08:39:19Z","spotify_id":"6qwFSZ4r0DG7MtvVatLYsV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b885a62733886ee539a3c3cd2eb32307879cf22cb04a41cc30bfafa144b894. 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/6qwFSZ4r0DG7MtvVatLYsV.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/6qwFSZ4r0DG7MtvVatLYsV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15758196dec9788909c0a89479ac85d07543446ad35258d0af9c901775129120. 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/0VHNwRAbgsDtyS2lVUrSvc.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/0VHNwRAbgsDtyS2lVUrSvc.
Monstercat - Best of Electronic Music Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ce4afe7fb9467171f32f32913492939c0ca4c4a11c4716c50b2887e919eca1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/57jTbAOO9i7qrzrwQri3gs.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/57jTbAOO9i7qrzrwQri3gs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b25f67ac9b070ac302ce39e66a6072c25577b9b34d09ecd5747d284432b06ae. 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/2wJwCrie7euxtBIl1uZGXi.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/2wJwCrie7euxtBIl1uZGXi.