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 0x8534f9cd79c412d3fc935ef71c5cfb662640708d075f87dced8e38c40a0f650c. 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/6a30872d-dec0-4a57-b91a-d385af096e2f.json and https://artists.proofprofile.net/proofs/artist/6a30872d-dec0-4a57-b91a-d385af096e2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
NoiseTemple (What Does Sound Look Like?)
NoiseTemple - What Does Sound Look Like?
{"copyright_id":"0x359f9363220733fee9f254dc5a946f5accbc49ec736fe1a3dd8889f37c469296","isrc":"GB5SH2400002","name":"Fantasy - Kelbin Remix","registered_at":"2026-06-11T15:00:12Z","spotify_id":"4UsXyjhVBuTZPUq0I1Tj5b","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 0x359f9363220733fee9f254dc5a946f5accbc49ec736fe1a3dd8889f37c469296. 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/4UsXyjhVBuTZPUq0I1Tj5b.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/4UsXyjhVBuTZPUq0I1Tj5b.
{"copyright_id":"0x359f9363220733fee9f254dc5a946f5accbc49ec736fe1a3dd8889f37c469296","isrc":"GB5SH2400002","name":"Fantasy - Kelbin Remix","registered_at":"2026-06-11T15:00:12Z","spotify_id":"5OP8irgVkGj5CCOkvdfkhM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359f9363220733fee9f254dc5a946f5accbc49ec736fe1a3dd8889f37c469296. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OP8irgVkGj5CCOkvdfkhM.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/5OP8irgVkGj5CCOkvdfkhM.
{"copyright_id":"0x30d888f19e1ad4e7756e542cf59bd2011fae3ad86c639f29a76f642f5b13d76c","isrc":"GBK3W2403182","name":"Screen Cleaner (Kelbin Remix)","registered_at":"2026-06-26T03:16:39Z","spotify_id":"0PQ4qqXLnTgxPhjcVX6huN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d888f19e1ad4e7756e542cf59bd2011fae3ad86c639f29a76f642f5b13d76c. 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/0PQ4qqXLnTgxPhjcVX6huN.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/0PQ4qqXLnTgxPhjcVX6huN.
{"copyright_id":"0x308ec0d7f9e428432f5dbbd7c1a17fcea92c157a7a9886b2fa29c782f676e68a","isrc":"DKH7E2500001","name":"Cheese Interface","registered_at":"2026-06-07T14:40:31Z","spotify_id":"3L4PWaRQMaiBi5x6xDFb2Q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308ec0d7f9e428432f5dbbd7c1a17fcea92c157a7a9886b2fa29c782f676e68a. 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/3L4PWaRQMaiBi5x6xDFb2Q.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/3L4PWaRQMaiBi5x6xDFb2Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dee71f275cc12874b91041125b419964d89d4cdab13cac099fdfa9e769cc630. 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/5AjNjCM7ma2Spq8F5lurpI.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/5AjNjCM7ma2Spq8F5lurpI.