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 0xacb3b22d8d79a94926df4170be72b386ea3c7fd0ae0e43cdf7d224d3128017c4. 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/f59d7ac2-076d-4175-9faf-8bfc42039bdd.json and https://artists.proofprofile.net/proofs/artist/f59d7ac2-076d-4175-9faf-8bfc42039bdd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Home Is Where the Heart Is (2024 Remaster)
{"copyright_id":"0x83fe352376b61a928c4ff3da871986565a08e0ea56dd0c26c2c56e19df2c32db","isrc":"QMFMG1354981","name":"You've Got Another Thing Coming","registered_at":"2026-06-11T09:46:50Z","spotify_id":"2aEtcPnMIn8t8PGMDQW0VB","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 0x83fe352376b61a928c4ff3da871986565a08e0ea56dd0c26c2c56e19df2c32db. 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/2aEtcPnMIn8t8PGMDQW0VB.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/2aEtcPnMIn8t8PGMDQW0VB.
Hell Bent Forever - A Tribute To Judas Priest
{"copyright_id":"0x9c4a37709253596df25b04833a3f8f36a368f5ce2ec276ed2f83fd8b274400ba","isrc":"USSM19918738","name":"When I Look Into Your Eyes","registered_at":"2026-06-24T08:52:37Z","spotify_id":"5yl14dRgHbd6xhNzkvkdq3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4a37709253596df25b04833a3f8f36a368f5ce2ec276ed2f83fd8b274400ba. 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/5yl14dRgHbd6xhNzkvkdq3.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/5yl14dRgHbd6xhNzkvkdq3.
{"copyright_id":"0x5f69efb5cd742d5c7f026a173f0cfc33dd0fcbe79606c8659c0f702bb06610d0","isrc":"USSM19602672","name":"When I Look Into Your Eyes (acoustic)","registered_at":"2026-06-27T09:25:51Z","spotify_id":"2FHsaWmbDmsXHJtDwLRZ4w","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f69efb5cd742d5c7f026a173f0cfc33dd0fcbe79606c8659c0f702bb06610d0. 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/2FHsaWmbDmsXHJtDwLRZ4w.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/2FHsaWmbDmsXHJtDwLRZ4w.