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 0x09fae0fc722db7100a26a1f923b95c611184345079376ddf1c2122835e2908aa. 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/ec9c7fc8-91f4-4b90-909a-089464c7ec25.json and https://artists.proofprofile.net/proofs/artist/ec9c7fc8-91f4-4b90-909a-089464c7ec25.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 0x9aa791037b1dd2d5b368918656e028ae7b85eaaf391fbe0aaee123948546ab34. 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/6OJblc63vbMcC9uEIY1Hpq.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/6OJblc63vbMcC9uEIY1Hpq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a8328f47d95cf8b608bc4659e9f7b83a03a1dcbd066689b57410f709a09b73. 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/1lfaKnVsGfpn5E1emxB7At.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/1lfaKnVsGfpn5E1emxB7At.
{"copyright_id":"0xaa73990da019f5aee8bb83d2cf78a57c41460881eef3b594465b3000ce9b5414","isrc":"ZAWTL2400001","name":"UMAMA Owangizalayo (Piano Remix 2.0)","registered_at":"2026-06-04T09:50:53Z","spotify_id":"3YDpNeEJJPSnuge3Y09Fsh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa73990da019f5aee8bb83d2cf78a57c41460881eef3b594465b3000ce9b5414. 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/3YDpNeEJJPSnuge3Y09Fsh.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/3YDpNeEJJPSnuge3Y09Fsh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd5bfe62bf6dd467590beb635ed289d033e106aa7163cbf8096fc6016b307e3. 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/2gMMs6DroMmgqN2EFsDibi.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/2gMMs6DroMmgqN2EFsDibi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ad844cb95bffbb57ebfa3e0ded42d454399509d71e7fdacb3dc8e294a49c69. 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/4vIGV4lsaRD2PSX2E8IAXF.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/4vIGV4lsaRD2PSX2E8IAXF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15dcb006b0c8b2dd50053528016314d2b3f5415ee1d6fc09c38ad9f6bbd5e1c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7MfwV3EKDIa53a31Jg4VBD.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/7MfwV3EKDIa53a31Jg4VBD.
Sellathekeng _Maria Singer and DaMabusa (Fifi) [Radio Edit]
Sellathekeng _Maria Singer and DaMabusa (Fifi) - Radio Edit
{"copyright_id":"0xc6ef6d13404fba33f63db44a380ff9b12010b9b04b435be19a94d9eaf7d6bd66","isrc":"QZDA82116076","name":"Mama Owangizalayo (Original Version)","registered_at":"2026-06-07T03:36:30Z","spotify_id":"02STgRHPB5js14C8nKr1sa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ef6d13404fba33f63db44a380ff9b12010b9b04b435be19a94d9eaf7d6bd66. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/02STgRHPB5js14C8nKr1sa.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/02STgRHPB5js14C8nKr1sa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9071078bad226003cfb35ea58a0c395a41617b374cb0f821eb77b047f657ff. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:48:03Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0DQAv4S7J96O6ZODRIzKvA.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/0DQAv4S7J96O6ZODRIzKvA.
{"copyright_id":"0x6719b3bbdfef1828f6eaaa6d094ef77271b436b5ec0857c98c6b8e3c258d6988","isrc":"ZAWTL2000003","name":"Angenzi Ngabomu","registered_at":"2026-06-09T05:07:52Z","spotify_id":"4hhZghShdDrONySB5Dydge","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6719b3bbdfef1828f6eaaa6d094ef77271b436b5ec0857c98c6b8e3c258d6988. 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/4hhZghShdDrONySB5Dydge.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/4hhZghShdDrONySB5Dydge.