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 0x62ed50ac99fd691e5cf5a0ae76ab14ba84f2027b399256b12296dce89f456d3a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4d4dd1f-92a0-4048-8b54-a065f87dde82.json and https://artists.proofprofile.net/proofs/artist/f4d4dd1f-92a0-4048-8b54-a065f87dde82.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 0xd8372bd986f53e21a25e767f001674bf44ce7c30cdc4b7f7d5e218c1737bfdf1. 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/30RXGLshIRJPmktdMY5meA.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/30RXGLshIRJPmktdMY5meA.
When Everything Means Nothing (Cinematic)
When Everything Means Nothing (feat. Jake Luhrs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ec8a8232047f643253e664d04e25931e9e547fbf8c8cf32191e461d4616de4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Pk2Fy0i0BuzfGaCFpB9DB.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/5Pk2Fy0i0BuzfGaCFpB9DB.
{"copyright_id":"0x07ad2330d308b5e9ac8b1c8fb785cb53b71a87817cf43697da72bb3f6fd708ce","isrc":"QMGVJ2300228","name":"Keeping Secrets","registered_at":"2026-06-07T12:07:55Z","spotify_id":"0WUy41i8cRlXGqPCNwlUdW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ad2330d308b5e9ac8b1c8fb785cb53b71a87817cf43697da72bb3f6fd708ce. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0WUy41i8cRlXGqPCNwlUdW.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/0WUy41i8cRlXGqPCNwlUdW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ec8a8232047f643253e664d04e25931e9e547fbf8c8cf32191e461d4616de4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0QKy9KevtY4DTDW4ZTwyoR.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/0QKy9KevtY4DTDW4ZTwyoR.
Witness The End (feat. Chris Motionless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71efb665c543b8dbbfab2c139bcb312f033c070f108363d72c4e34f7c509b199. 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/2H0k1MrhZde4uiJahF4CoO.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/2H0k1MrhZde4uiJahF4CoO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71efb665c543b8dbbfab2c139bcb312f033c070f108363d72c4e34f7c509b199. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/08FUu82jFVDF5oKnQko4e7.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/08FUu82jFVDF5oKnQko4e7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ea9568317a8792b291f401af029c2b9115940766c88abc8deb4a50e23848cf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3rxPCANdScsNCKuEdE9e5y.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/3rxPCANdScsNCKuEdE9e5y.
{"copyright_id":"0xdfdbf7c6e3369e905ff33e84d6fab78d0adbe091162bbfbad5b39465bf76a972","isrc":"USTN11300005","name":"Bitter End","registered_at":"2026-06-10T23:20:42Z","spotify_id":"0AhjLMIEvcevaPtOydWSyD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdbf7c6e3369e905ff33e84d6fab78d0adbe091162bbfbad5b39465bf76a972. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0AhjLMIEvcevaPtOydWSyD.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/0AhjLMIEvcevaPtOydWSyD.