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 0x67becb4e3551f28a1d16ff25e67a7cc90373aa3fa890f7243ab5aa5b8c82de38. 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/a34978b6-e668-435b-89fd-67615715fa7e.json and https://artists.proofprofile.net/proofs/artist/a34978b6-e668-435b-89fd-67615715fa7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Borderlands 3: The Maliwan Blacksite (Original Soundtrack)
Borderlands 3: Revenge of the Cartels (Original Soundtrack)
{"copyright_id":"0x9100e08a8e95fa6afcda4985999425dd903a091202c3accd7172472d44eafb94","isrc":"GB9TP2000754","name":"Descending the Overlook","registered_at":"2026-06-29T10:48:59Z","spotify_id":"1tKJmZFztBaYhqPM07U5cl","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 0x9100e08a8e95fa6afcda4985999425dd903a091202c3accd7172472d44eafb94. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1tKJmZFztBaYhqPM07U5cl.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/1tKJmZFztBaYhqPM07U5cl.
{"copyright_id":"0x7ea29f4ae49bd4f762c5faf4e62e1ed4bacccb903c6fd4e0a062f84fc34c24ec","isrc":"GB9TP2000756","name":"Meet Cartel's Little Friends","registered_at":"2026-06-29T10:51:05Z","spotify_id":"4OG7SKnHFvnAKFfSe4fdKq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea29f4ae49bd4f762c5faf4e62e1ed4bacccb903c6fd4e0a062f84fc34c24ec. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4OG7SKnHFvnAKFfSe4fdKq.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/4OG7SKnHFvnAKFfSe4fdKq.
Can You Feel the Flames of Joey Ultraviolet
Borderlands 3: Psycho Krieg and the Fantastic Fustercluck (Original Soundtrack)
The Memories Are All I Have Left (Remix)
{"copyright_id":"0x0bb465296e38799c33a4eb426aad2ab281e6b4bbf4a6e9b997afcf8dc4b7de85","isrc":"GB9TP2001536","name":"We Die in Here All the Time","registered_at":"2026-06-29T10:52:47Z","spotify_id":"2HyQHyZESpRfr1hG0lrlkx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb465296e38799c33a4eb426aad2ab281e6b4bbf4a6e9b997afcf8dc4b7de85. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2HyQHyZESpRfr1hG0lrlkx.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/2HyQHyZESpRfr1hG0lrlkx.
Grounded - Year 2 (Original Game Soundtrack)
{"copyright_id":"0x7c5031cb00f9aab9455bfb455c8e2fa564b9b027ccedecc4096582f46970a395","isrc":"USA2P2237859","name":"More Grasslands","registered_at":"2026-06-29T03:42:29Z","spotify_id":"417N4vGsTLXUbbQLACzUUi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5031cb00f9aab9455bfb455c8e2fa564b9b027ccedecc4096582f46970a395. 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/417N4vGsTLXUbbQLACzUUi.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/417N4vGsTLXUbbQLACzUUi.
The Great Beyond or How I Learned to Love Being a Raisin
The Callisto Protocol (Original Game Soundtrack)
Doom: The Dark Ages (Original Game Soundtrack)