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 0x7710e37728c7b70a946ced476c6945bcc85d87330991b20ae54c61a00bf106e9. 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/6e8b5a4b-b16d-4fd2-801c-9117e9b06f54.json and https://artists.proofprofile.net/proofs/artist/6e8b5a4b-b16d-4fd2-801c-9117e9b06f54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x6d323c349d29adb4cbd911fc41047d3c5ba25f8733c72cacca42dddba292b979","isrc":"TCAEK1995137","name":"How Come","registered_at":"2026-06-29T05:43:57Z","spotify_id":"76nkWNABehcOO6L3blzcht","type":"track"}
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 0x6d323c349d29adb4cbd911fc41047d3c5ba25f8733c72cacca42dddba292b979. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/76nkWNABehcOO6L3blzcht.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/76nkWNABehcOO6L3blzcht.
{"copyright_id":"0x6d323c349d29adb4cbd911fc41047d3c5ba25f8733c72cacca42dddba292b979","isrc":"TCAEK1995137","name":"How Come","registered_at":"2026-06-29T05:43:57Z","spotify_id":"1KnUc0Nl0XR18AAcGDgXdo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d323c349d29adb4cbd911fc41047d3c5ba25f8733c72cacca42dddba292b979. 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/1KnUc0Nl0XR18AAcGDgXdo.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/1KnUc0Nl0XR18AAcGDgXdo.
Cruisin on the Beach (feat. Typical Hawaiians)
Th Reggae Hui Compilation "Island Vibrations," Vol. 1
{"copyright_id":"0xb8d1f79e4bac24596c5b145e0e55daa8df76eb8cd085daec4b89b3ad31f8f495","isrc":"QZTAU2140257","name":"You Never Know","registered_at":"2026-06-08T20:32:45Z","spotify_id":"34uE9oCheBW5JHx9v3M0V2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d1f79e4bac24596c5b145e0e55daa8df76eb8cd085daec4b89b3ad31f8f495. 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/34uE9oCheBW5JHx9v3M0V2.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/34uE9oCheBW5JHx9v3M0V2.