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 0x9bb64d1a77b8c57789f84fdaf69b054b9e0694e70db397a41affd647c1078227. 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/2f44d916-3012-4fca-bff4-d4ead54870b0.json and https://artists.proofprofile.net/proofs/artist/2f44d916-3012-4fca-bff4-d4ead54870b0.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 0x3bca6921d88252dacc0ac5c7afa6f0b623331085a8c3abb76e86e8958df267eb. 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/0we7PkLhQRnO5xS9s3Xzqa.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/0we7PkLhQRnO5xS9s3Xzqa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759caf52425a81103101236da928635f65bbd49e35fc6241094fecfa0a42275e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0YhxPGZY3OTadZt7Vzw6Xj.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/0YhxPGZY3OTadZt7Vzw6Xj.
{"copyright_id":"0xc45a21b07e7d3bd90f733f1165bad5548baabb65b5cc05d797a3094503d18eab","isrc":"USUYG1419350","name":"RASTA PASTA","registered_at":"2026-06-25T13:32:18Z","spotify_id":"2RV1LSStPHJVaByxd3k63E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45a21b07e7d3bd90f733f1165bad5548baabb65b5cc05d797a3094503d18eab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2RV1LSStPHJVaByxd3k63E.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/2RV1LSStPHJVaByxd3k63E.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73ee1f827bf3514855706b93d72741e3c9c80346dd3c4337ee5417ba9e7625f. 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/472UDhe7yQp7kyxXFxz0Wk.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/472UDhe7yQp7kyxXFxz0Wk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ef6bcb4d39661de82296a3b423c1364d16ecc5ee8dddaae7d5762b565824f7. 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/6FbmQKM4D42sxzv2dGSWMz.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/6FbmQKM4D42sxzv2dGSWMz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5deb12907b8dd10ad36b3b3ddf647c51ffa622b2de57b9a3bf12aaddbdc6d9. 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/0oB3rRY1oa7e6JNhotZuZR.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/0oB3rRY1oa7e6JNhotZuZR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c30505cf4b386ee67440596c59906aa596610c48f7fcd49bde44dc6caa1d07. 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/0sKb06XJQd4MD7D1iwLbIT.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/0sKb06XJQd4MD7D1iwLbIT.
that's right daddy (feat. Igwe Aka & Mercury)
{"copyright_id":"0x673eacfc94d4ff56acf505ca8095adae8c2365f40a38db895044c561bc0d7e9e","isrc":"USSM12307487","name":"that's right daddy (feat. Igwe Aka & Mercury)","registered_at":"2026-06-08T04:51:04Z","spotify_id":"3mUMCfl8kOxAR6rPEAl7bv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673eacfc94d4ff56acf505ca8095adae8c2365f40a38db895044c561bc0d7e9e. 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/3mUMCfl8kOxAR6rPEAl7bv.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/3mUMCfl8kOxAR6rPEAl7bv.