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 0x65df8a30f311b83d5e9f36a9366128f4817e6750326eafd060291a25505abaae. 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/6e1e4a0f-7392-4a25-8178-8d98891620b8.json and https://artists.proofprofile.net/proofs/artist/6e1e4a0f-7392-4a25-8178-8d98891620b8.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 0xf708326174cb42768430415ecd469800998c330581aefd6925d0a4b0975ce1df. 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/4AK3hnwn8VxkyMT7cVMkq4.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/4AK3hnwn8VxkyMT7cVMkq4.
{"copyright_id":"0x92ed3e28c394545f86da09d75748fc0bd525523dcca0e66aa0a83e82d3c87a45","isrc":"USU6V9995570","name":"Siempre Juntos - En Vivo","registered_at":"2026-06-19T23:24:56Z","spotify_id":"1bCiOHQ3HY23UlYeYt9LWZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ed3e28c394545f86da09d75748fc0bd525523dcca0e66aa0a83e82d3c87a45. 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/1bCiOHQ3HY23UlYeYt9LWZ.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/1bCiOHQ3HY23UlYeYt9LWZ.
Paradise, Vol. 2: The Best Of Latin Ballads
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d2e0a077cd34e977538322ce95f304084eaea83ea0053bdcef43d48ffd8a2d. 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/1nY7eOIPzLpLyQTZpNGQWt.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/1nY7eOIPzLpLyQTZpNGQWt.
{"copyright_id":"0x9093955c0cf513b1ab3c2c0d7f70f737f4f3dd326df4a16f4ae42549d68d7972","isrc":"USHM21472466","name":"Siempre Juntos - En Vivo","registered_at":"2026-06-25T07:28:49Z","spotify_id":"0HHjX0mOxIdKMn0ooaUXgR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9093955c0cf513b1ab3c2c0d7f70f737f4f3dd326df4a16f4ae42549d68d7972. 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/0HHjX0mOxIdKMn0ooaUXgR.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/0HHjX0mOxIdKMn0ooaUXgR.