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 0xec4d4d01c9a30c4fce20533f1fd560f9de838098e61ca1f4be544f1d92c59ba4. 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/e1620e86-f7c7-4243-afd3-1a936e418e63.json and https://artists.proofprofile.net/proofs/artist/e1620e86-f7c7-4243-afd3-1a936e418e63.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 0xfd759c4040d9740148593190d07d1c43644e3a5b506465f61d92d8e93b5a1dd9. 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/5s8KTstqMAU4NapjCdt4t7.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/5s8KTstqMAU4NapjCdt4t7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fcfd179d087dbda99e56472efb3c7f3281787578faed5e1747c124eca6c237. 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/1mWeauU9WjN23JqmP0xyBR.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/1mWeauU9WjN23JqmP0xyBR.
{"copyright_id":"0xfa860cfe08189f9bc41ac46622d2e12a1eeb0ee12a7637dbc1db5adcf124bf37","isrc":"DEZC62496346","name":"Was du liebst","registered_at":"2026-06-29T05:40:30Z","spotify_id":"7kaFBUzKANsJjco3br4Fss","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa860cfe08189f9bc41ac46622d2e12a1eeb0ee12a7637dbc1db5adcf124bf37. 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/7kaFBUzKANsJjco3br4Fss.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/7kaFBUzKANsJjco3br4Fss.
{"copyright_id":"0xe7a5bcf0d5e3a2a050d127644a8d9df2b36b6ea8954549ddeabaa93e23005755","isrc":"DELJ82013210","name":"Nicht so wie sie","registered_at":"2026-06-20T06:53:09Z","spotify_id":"6QM1SAWodYfauqdjMeDkQb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a5bcf0d5e3a2a050d127644a8d9df2b36b6ea8954549ddeabaa93e23005755. 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/6QM1SAWodYfauqdjMeDkQb.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/6QM1SAWodYfauqdjMeDkQb.