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 0x455fc7a10cfd1d0683fb8156879b2bf63c4b56079ed7b6e378f04761d3e6d0f3. 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/3d9d98c2-a4e8-4b5d-9e5f-59020ab67b27.json and https://artists.proofprofile.net/proofs/artist/3d9d98c2-a4e8-4b5d-9e5f-59020ab67b27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chloe In Pasadena (The Kind of Guy I Am)
A Very Blue Rock Christmas, Vol. 2 (Live)
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 0x4253c93e4856c9e6e64f29f134370e4655012471275e09ddd2405a2d15d434ed. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:38:47Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6x7chXt8XD7bfa6IptOwTe.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/6x7chXt8XD7bfa6IptOwTe.
Hello Old Friends (The Songs of Rich Mullins)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7251a63766db8d4c82f7aa2b2c421669d22e873a201b50f463a94bea280e09. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6ZyW0KvnTED2LJvzptdHT7.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/6ZyW0KvnTED2LJvzptdHT7.
{"copyright_id":"0x4b7251a63766db8d4c82f7aa2b2c421669d22e873a201b50f463a94bea280e09","isrc":"QZGXC2200425","name":"Hello Old Friends","registered_at":"2026-06-18T22:19:21Z","spotify_id":"2JsuIWCGVEenK9kwjcvCzs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7251a63766db8d4c82f7aa2b2c421669d22e873a201b50f463a94bea280e09. 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/2JsuIWCGVEenK9kwjcvCzs.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/2JsuIWCGVEenK9kwjcvCzs.