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 0xce64e12955c007e8882c4101a7f9b386024b76b090b8b3396ee3fbb1ce279c4e. 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/ee417db5-9cff-48fb-9545-6309eebbdf7e.json and https://artists.proofprofile.net/proofs/artist/ee417db5-9cff-48fb-9545-6309eebbdf7e.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 0x09a99237fee03ff574d8c6a7847cdf801e2b0adc0acd5c97684ec4d703775d0e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0S9CZF7WH2gseei3AvVYmA.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/0S9CZF7WH2gseei3AvVYmA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb64dc233ab6591bf087e35f16ea2bfb2590f62f449de2335c2d1b750675405. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4PAHOMC69mWjI96LmNfvE9.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/4PAHOMC69mWjI96LmNfvE9.
{"copyright_id":"0x7da67ea1cfe572ddb34aaba44ff1f78c9b1d1808b4a1efc40101b4bba94af04f","isrc":"TCAHJ2317964","name":"Fylla Igjæn","registered_at":"2026-06-07T11:57:11Z","spotify_id":"1Nf7mUGCYrbyK9MCInZFWx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da67ea1cfe572ddb34aaba44ff1f78c9b1d1808b4a1efc40101b4bba94af04f. 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/1Nf7mUGCYrbyK9MCInZFWx.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/1Nf7mUGCYrbyK9MCInZFWx.
{"copyright_id":"0xd4de9fe381605d9a4bc0af18b5b6dc2ed51cd1dde836437da8e7b7bd1f73f4b8","isrc":"NO2DY2400455","name":"Altfor seint","registered_at":"2026-06-08T07:25:32Z","spotify_id":"3meXbewrdUPWYENueBA5fj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4de9fe381605d9a4bc0af18b5b6dc2ed51cd1dde836437da8e7b7bd1f73f4b8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3meXbewrdUPWYENueBA5fj.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/3meXbewrdUPWYENueBA5fj.