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 0x0e365e6b9a89483908fea1f84662bfafc7aa2360831426fd2f7f0330e78f585c. 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/771c3e47-b67f-4eb4-a88e-72b71668c46c.json and https://artists.proofprofile.net/proofs/artist/771c3e47-b67f-4eb4-a88e-72b71668c46c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xaa5fbb81bfeebe61538940f182a5229dbdad6be8e487d88968e49c27f0e7a9fe","isrc":"USLZJ1546254","name":"Jump - E.Y. Beats Remix","registered_at":"2026-06-18T04:39:57Z","spotify_id":"3pQ5aj9I7PNpBuOe9PED0J","type":"track"}
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 0xaa5fbb81bfeebe61538940f182a5229dbdad6be8e487d88968e49c27f0e7a9fe. 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/3pQ5aj9I7PNpBuOe9PED0J.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/3pQ5aj9I7PNpBuOe9PED0J.
{"copyright_id":"0x1ebb60436f96fc0c4dbeb74054dd468b0ec984b9268241bd8327a3459701e408","isrc":"USLZJ1546255","name":"Jump - Skan Remix","registered_at":"2026-06-20T11:26:57Z","spotify_id":"4GAqDvUdMbvHTLWlzKYfPj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebb60436f96fc0c4dbeb74054dd468b0ec984b9268241bd8327a3459701e408. 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/4GAqDvUdMbvHTLWlzKYfPj.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/4GAqDvUdMbvHTLWlzKYfPj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfa98350c0e9e2e5d97541d1502502f4a5820339a44c5daa94ecb000dab61a7. 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/7s1Szjd8mMzhV6N2YLhMrh.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/7s1Szjd8mMzhV6N2YLhMrh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa194db80a34987c47870ae945ef9e088168cfae0982f63e46145f3402950c206. 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/6s4rnjU4hrxS59hFjOB5S0.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/6s4rnjU4hrxS59hFjOB5S0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac7833e39815a39d15f4da72431d8e73ad36df1fd37d712b6733aca503bb396. 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/1MaXdTc3ThfletHE68R74O.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/1MaXdTc3ThfletHE68R74O.
{"copyright_id":"0x808dd7ceea476c3c6e16e96d80db5ef5641fce7c264d8417ae6e8bc2544885df","isrc":"USLZJ1451750","name":"Slender - Original Mix","registered_at":"2026-06-18T20:03:46Z","spotify_id":"5il8WA8Sq2r0jQ1f4MMpNW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808dd7ceea476c3c6e16e96d80db5ef5641fce7c264d8417ae6e8bc2544885df. 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/5il8WA8Sq2r0jQ1f4MMpNW.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/5il8WA8Sq2r0jQ1f4MMpNW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bcbfac22e3606cbd4813d5335a70091dfd4a123303cacb2d7f22fb9cbdcd36. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6FEOt3I3bgUOrtbR2N3Zbc.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/6FEOt3I3bgUOrtbR2N3Zbc.
Hands In The Air (feat. Ragga Twins) - Original Mix
{"copyright_id":"0x62a68e5ef63c2652c49083d16542cd46e2fdd9f1a0b3b94aa5c1083da4f12cf3","isrc":"USLZJ1422107","name":"Hands In The Air (feat. Ragga Twins) - Original Mix","registered_at":"2026-06-20T05:38:55Z","spotify_id":"39FvEFrSVjsYcKLvJep5PI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a68e5ef63c2652c49083d16542cd46e2fdd9f1a0b3b94aa5c1083da4f12cf3. 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/39FvEFrSVjsYcKLvJep5PI.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/39FvEFrSVjsYcKLvJep5PI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89239f69f8f98bdd9e7468a3bbc06e33f7d487f561cbebe8e5b8159496b91eb2. 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/2Eq2jFUlVlzdGdXAVsoDng.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/2Eq2jFUlVlzdGdXAVsoDng.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecfbe373c340a5112567544aef5f850bdc60af8c2e425cc47be79b6b3454176. 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/0LPc78j51u0fXWeNePRs0d.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/0LPc78j51u0fXWeNePRs0d.
{"copyright_id":"0x5b1a6f5b4f57e1461fe0354f78bda3611fde7d7625db069a4ac4402cad7baf9c","isrc":"GBKQU1421705","name":"Loud Strings - Original Mix","registered_at":"2026-06-06T05:46:24Z","spotify_id":"6HtdFQv2HsXJ44eanhuRcm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1a6f5b4f57e1461fe0354f78bda3611fde7d7625db069a4ac4402cad7baf9c. 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/6HtdFQv2HsXJ44eanhuRcm.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/6HtdFQv2HsXJ44eanhuRcm.