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 0xc215a023083b01746c213c353e7160291bb602be0cf653a8252fcf50aa951848. 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/920edecf-2944-44ad-93fd-26a464d36889.json and https://artists.proofprofile.net/proofs/artist/920edecf-2944-44ad-93fd-26a464d36889.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 0x68e7d0e7fc1866b62164c957ce969e5ad1cf304003ef7d200bc91f3951eb9a9e. 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/2QwRyyqRCUE3ClyabfktUX.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/2QwRyyqRCUE3ClyabfktUX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f6f6a4ec89fc613233c62f32ecd95aa3b52ed60f7448c0622978cfd4eed329. 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/4LPEJCLHQ2R2ftfeW4lQJw.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/4LPEJCLHQ2R2ftfeW4lQJw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a837437d61770ddbbc0215fbec00ad6e595cae293a6e43b2924776458d1a64. 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/1kc1t5LczHxVPxc1mZePAn.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/1kc1t5LczHxVPxc1mZePAn.
BLACK FLAG FREESTYLE (with That Mexican OT)
{"copyright_id":"0x6e6fc1b9f62a4edaa0007c28a55266f0b773c2ea9ab01078126a6dbee1ca06ef","isrc":"USC4R2443036","name":"HOT ONE (with TiaCorine & A$AP Ferg)","registered_at":"2026-06-01T09:43:29Z","spotify_id":"2iS9IvWmpnmcVpNxvL0XD3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6fc1b9f62a4edaa0007c28a55266f0b773c2ea9ab01078126a6dbee1ca06ef. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2iS9IvWmpnmcVpNxvL0XD3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2iS9IvWmpnmcVpNxvL0XD3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28356e4444c48da4386d8e327e73aacc353255b337c12a9a9aa8c28e502c4434. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5INKRQu8tEdsrogxlFpHUW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5INKRQu8tEdsrogxlFpHUW.
{"copyright_id":"0x6e6fc1b9f62a4edaa0007c28a55266f0b773c2ea9ab01078126a6dbee1ca06ef","isrc":"USC4R2443036","name":"HOT ONE (with TiaCorine & A$AP Ferg)","registered_at":"2026-06-01T09:43:29Z","spotify_id":"083HuPvgqYBLUiv82bVxwE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6fc1b9f62a4edaa0007c28a55266f0b773c2ea9ab01078126a6dbee1ca06ef. 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/083HuPvgqYBLUiv82bVxwE.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/083HuPvgqYBLUiv82bVxwE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe037ab2026c192a497986aa631297cfeb9916244bb14c781f1c45afeb07a210. 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/5R05zM2A2BUuTyPvyf6SsZ.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/5R05zM2A2BUuTyPvyf6SsZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe037ab2026c192a497986aa631297cfeb9916244bb14c781f1c45afeb07a210. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0l7ItVQIR7QHSMGLkfO7yw.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/0l7ItVQIR7QHSMGLkfO7yw.
HOODLUMZ (with PlayThatBoiZay & A$AP Rocky)
{"copyright_id":"0x6e6fc1b9f62a4edaa0007c28a55266f0b773c2ea9ab01078126a6dbee1ca06ef","isrc":"USC4R2443036","name":"HOT ONE (with TiaCorine & A$AP Ferg)","registered_at":"2026-06-03T19:01:31Z","spotify_id":"4pgXUDvllW3svlm8nNGLQJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6fc1b9f62a4edaa0007c28a55266f0b773c2ea9ab01078126a6dbee1ca06ef. 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/4pgXUDvllW3svlm8nNGLQJ.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/4pgXUDvllW3svlm8nNGLQJ.
{"copyright_id":"0x6e6fc1b9f62a4edaa0007c28a55266f0b773c2ea9ab01078126a6dbee1ca06ef","isrc":"USC4R2443036","name":"HOT ONE (with TiaCorine & A$AP Ferg)","registered_at":"2026-06-01T09:43:30Z","spotify_id":"2TmS5wJTfWrpFgakSSTdCi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6fc1b9f62a4edaa0007c28a55266f0b773c2ea9ab01078126a6dbee1ca06ef. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2TmS5wJTfWrpFgakSSTdCi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2TmS5wJTfWrpFgakSSTdCi.
{"copyright_id":"0x6e6fc1b9f62a4edaa0007c28a55266f0b773c2ea9ab01078126a6dbee1ca06ef","isrc":"USC4R2443036","name":"HOT ONE (with TiaCorine & A$AP Ferg)","registered_at":"2026-06-02T19:33:53Z","spotify_id":"3VfYzyNZrvulkAmI5QK2ZB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6fc1b9f62a4edaa0007c28a55266f0b773c2ea9ab01078126a6dbee1ca06ef. 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/3VfYzyNZrvulkAmI5QK2ZB.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/3VfYzyNZrvulkAmI5QK2ZB.
{"copyright_id":"0x0fbc2ef82d158b420d07a46ee17c2a75a4d623f1823291bd8a6a7a3224bd82c2","isrc":"QZAPK2000461","name":"Off That Shit Again (feat. TiaCorine)","registered_at":"2026-06-08T04:41:59Z","spotify_id":"1xjqmj4aZbHQjWVnRuyZ0f","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbc2ef82d158b420d07a46ee17c2a75a4d623f1823291bd8a6a7a3224bd82c2. 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/1xjqmj4aZbHQjWVnRuyZ0f.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/1xjqmj4aZbHQjWVnRuyZ0f.