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 0x5b8c311c804cc84944e30ecc2f959b80aecda7d2892da82bf35526d664f11f50. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d1a956c-f039-4ce8-b796-ccd069bcaf0c.json and https://artists.proofprofile.net/proofs/artist/0d1a956c-f039-4ce8-b796-ccd069bcaf0c.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 0x2b13d96472cd8997b046b3477c146fa3f9742f8748606d25914d6e02b578fe9c. 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/3I27SsXrUf9DFP9Fc0ALVX.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/3I27SsXrUf9DFP9Fc0ALVX.
These Waters (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
These Waters (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
{"copyright_id":"0xce032a6ee950927f84e5d6a913b6b21f225e1be6a269930e5f5c1d57d1e048d7","isrc":"BE1FM1910012","name":"Bittersweet Baby","registered_at":"2026-06-04T06:54:29Z","spotify_id":"7KPZwV0b7aFQXhIPahLJdZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce032a6ee950927f84e5d6a913b6b21f225e1be6a269930e5f5c1d57d1e048d7. 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/7KPZwV0b7aFQXhIPahLJdZ.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/7KPZwV0b7aFQXhIPahLJdZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff43ec608d5c6e614b214b0cac7d37883668f5e0646d38ec62ba11bff90399d6. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:29:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4i2kkdz6ru1F1EIIu6oHRo.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/4i2kkdz6ru1F1EIIu6oHRo.