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 0x2530721ee7ddf400bde06327bdadf04958ff326798e68c219d5db2b78240a3ba. 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/8c80e526-0481-403a-8d18-fb1c74ec1f37.json and https://artists.proofprofile.net/proofs/artist/8c80e526-0481-403a-8d18-fb1c74ec1f37.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 0xa3273c9bdeea090f96734568dc8077aa80e1448cbe26df773366743934840d34. 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/5RsPYDwURZUqPQXxND9PPj.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/5RsPYDwURZUqPQXxND9PPj.
Batabani Kintu (Radio & Weasel, Jose Chameleon, Magic Washington & WJ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ce3b9023ef079834eef8e49ed2f441917a8bc7062bff650680661484331791. 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/0Fe831RXY0gsbb6Ixgwcro.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/0Fe831RXY0gsbb6Ixgwcro.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc34cbbf266a04f211eacd78c459378ee2a2e94beb91cee393c4144fd5da3218. 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/4a3cRX9s1gOa1gklk8NsYQ.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/4a3cRX9s1gOa1gklk8NsYQ.
{"copyright_id":"0xe76b21de361a549ffecd9e594dd1c8894c270c89d9e8fbb0ee1cbf4a666f9605","isrc":"QZK6M2124938","name":"Breath Away","registered_at":"2026-06-29T06:20:57Z","spotify_id":"7HU3gon3rdlz62o4zpOHoY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76b21de361a549ffecd9e594dd1c8894c270c89d9e8fbb0ee1cbf4a666f9605. 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/7HU3gon3rdlz62o4zpOHoY.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/7HU3gon3rdlz62o4zpOHoY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f78349a72ef9a106a886af15537520b071c59208b7e84849687859b7649e287. 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/3128WWOJSMDwJfpDlEvXrm.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/3128WWOJSMDwJfpDlEvXrm.