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 0xa1e1d04b817d6310cf87391cd8d809e78b5a87fb280707a600f3675489e07f91. 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/58f117ac-50c9-4e63-8cb7-9c4d8a6255cb.json and https://artists.proofprofile.net/proofs/artist/58f117ac-50c9-4e63-8cb7-9c4d8a6255cb.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 0x0683970adeec89878cf75da1b02f1cdd858c80e6ccd5763af33554b0a812f2c9. 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/2HnY5L0R4j0MiHmRMbdcCq.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/2HnY5L0R4j0MiHmRMbdcCq.
{"copyright_id":"0xaa84def92b08585b5570e4f8eb3e285f05be2e67ead7b3270d258eee521c5236","isrc":"NONOR1218100","name":"The Seven Seas","registered_at":"2026-06-29T05:59:23Z","spotify_id":"7hTObG67vrBR9jrR4UKOVo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa84def92b08585b5570e4f8eb3e285f05be2e67ead7b3270d258eee521c5236. 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/7hTObG67vrBR9jrR4UKOVo.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/7hTObG67vrBR9jrR4UKOVo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5730fcbad0188ca009709be8320fbb6093e15349cc45fcfa88fbd8cac855d720. 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/7ExOiBYIDBqeSqsqn6n5a3.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/7ExOiBYIDBqeSqsqn6n5a3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0ff1d3f09aa40a8fe305427410a4627db808ee801b43375ecaedabb1e500f0. 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/0ucwsCom5SsW4r21ht5cpK.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/0ucwsCom5SsW4r21ht5cpK.
Where's The Deluxe Version? (Philter Remix)