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 0xaee161727412201a301479f1babdd71f9cd81f6e47ee5a4bd969a51c14281566. 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/d3488588-e8c0-40b3-b736-d66c13ce1b5f.json and https://artists.proofprofile.net/proofs/artist/d3488588-e8c0-40b3-b736-d66c13ce1b5f.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 0x82eea6bb5ce9227d7412426b4642e18a31facc2cbdf0a4b89903fdef1454b6f9. 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/2NrjtSL1HQgPhonalbcqYz.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/2NrjtSL1HQgPhonalbcqYz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4fce6b86b8e54cc1703291f9201e2d0ea0d7a558f48f3d1eafd2f1cc6f31ef. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4vH9d9kEZbbA2L5jj8E0D6.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/4vH9d9kEZbbA2L5jj8E0D6.
{"copyright_id":"0x2c9a376b67a67db9433be6ddc4e3b9cdb6f4ca81e40849ea25568be06d86a224","isrc":"INS402002586","name":"Kha Leya Pee Leya Kar","registered_at":"2026-06-26T02:52:02Z","spotify_id":"5QkVkmYZI6Qhk1WB1co0xL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9a376b67a67db9433be6ddc4e3b9cdb6f4ca81e40849ea25568be06d86a224. 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/5QkVkmYZI6Qhk1WB1co0xL.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/5QkVkmYZI6Qhk1WB1co0xL.
{"copyright_id":"0x767ee552fbf3c3e72954361552739b61bca6a36b6395976bfb12aa8b92be2fae","isrc":"INS402002590","name":"Teri Nazar Niranjan","registered_at":"2026-06-26T02:50:20Z","spotify_id":"6PoA7SlPZJyS2NyHPgp4h7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767ee552fbf3c3e72954361552739b61bca6a36b6395976bfb12aa8b92be2fae. 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/6PoA7SlPZJyS2NyHPgp4h7.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/6PoA7SlPZJyS2NyHPgp4h7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9e8004d1748a868c61ebe4caa09bbd5d7c3db1dcf39c105791463f08102b10. 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/39oMUm9Z2Be5igFjGkD6Nt.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/39oMUm9Z2Be5igFjGkD6Nt.