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 0xf04f044f56c6924ebfed4210e974ccdfc0834c8ae86a1e69803da06c6070e175. 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/0755b10c-82e0-4762-a586-8529d10d5b30.json and https://artists.proofprofile.net/proofs/artist/0755b10c-82e0-4762-a586-8529d10d5b30.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 0x2952b4d43cc387cf698c1e191dea1db5e6d70bccc9b34fe0c94a7c3522e73a70. 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/6lX54DNIQ4Hfig94IFwZn7.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/6lX54DNIQ4Hfig94IFwZn7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf557a258a432c7778eab8ac0d4c9caf8a7765ccae2267c2c3ad22bbe08dd5de2. 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/6g0PMW5DKxyE5XAHfMEOR8.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/6g0PMW5DKxyE5XAHfMEOR8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f12a8967ae1780f336671a82b31dc92907ad87980680e664a27a9c97e07de6b. 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/4vArUQ4RgESOB5DQgLwP94.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/4vArUQ4RgESOB5DQgLwP94.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e341c266f6dd414c08767154759bfc6204a5be4095fb56d4f8206769ab59f3. 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/2FARrW9uKjQTsnpeq2axki.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/2FARrW9uKjQTsnpeq2axki.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e575896242b4bbe9503bda6a371cafea950cdf7e7217b68c1e6430e93ddebe0. 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/7pLnLzLqvxkUppmnfCRzTT.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/7pLnLzLqvxkUppmnfCRzTT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a1ef05a498481caf9c42804901007e13bb0ab389e0599ad4e23b45197670cc. 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/7E9RNklrY0LNHsD3laNaJg.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/7E9RNklrY0LNHsD3laNaJg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c84edd3b3dae73aaf66b1a2e557f431348473247bf7169689ab783f62d5b92b. 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/2PvStp1FUMRDZFgDRMW7GR.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/2PvStp1FUMRDZFgDRMW7GR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ad671632a1e92a4aedf530e2c866c2bf39a7f2b4485531100304f2292760de. 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/02mb4CRIbP0qa19p127Q8Q.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/02mb4CRIbP0qa19p127Q8Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d8f1facbe9b65ba208eb1193f9f22443d438883f446523b7fa31fbc6163d95. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0p4jkVF4ROGKfv8vbvFaDZ.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/0p4jkVF4ROGKfv8vbvFaDZ.