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 0xa65dab3ab699ff4e3d319747671ff8bdab8b259c6affb463acd0bd14da4c42b3. 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/0eea1cd4-0062-4418-ab40-a101991ae7bf.json and https://artists.proofprofile.net/proofs/artist/0eea1cd4-0062-4418-ab40-a101991ae7bf.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 0x9b9738f978bafdc232c14ffc130af40d1ef361b0abb88c69d726e17d6f1de835. 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/1r08AN9HcG09RsM5Ubf34W.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/1r08AN9HcG09RsM5Ubf34W.
{"copyright_id":"0xc9e2da9c4fc5fe1963059b1e3f76e60bb575311be1524990dfba38be8ab34f2a","isrc":"QM6N22383605","name":"BRAZILIAN DANÇA PHONK","registered_at":"2026-06-01T05:55:43Z","spotify_id":"6yVjjQA31SLM1kc4j5jPwF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e2da9c4fc5fe1963059b1e3f76e60bb575311be1524990dfba38be8ab34f2a. 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/6yVjjQA31SLM1kc4j5jPwF.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/6yVjjQA31SLM1kc4j5jPwF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbe614d834b11be7fb11b1a74d728ba0a96bb837a6d529d6003467d0c3aaab5. 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/69q3x2llQKcRkn2gwvFMWV.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/69q3x2llQKcRkn2gwvFMWV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8422fd9e0df8d9f81d0117ec7fa1cd49078554db993cb126642950180a07070e. 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/5loeEuHIBN3rueA41g6j1m.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/5loeEuHIBN3rueA41g6j1m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea7171c39276550b69dc3b555662b83d84b527ccdadb3d2657c888b2d05b265. 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/1N4MMLQeVXAeLr4RUhamNb.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/1N4MMLQeVXAeLr4RUhamNb.
{"copyright_id":"0xb48de280d4051e4a0d8f4710ed27e8227ec5848a0011982579d45c7dccdcaeae","isrc":"QZS7J2341779","name":"BAIXO - RXDXVIL Remix","registered_at":"2026-06-08T23:41:44Z","spotify_id":"77khfP1Pfls3mFLSnvHgOh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48de280d4051e4a0d8f4710ed27e8227ec5848a0011982579d45c7dccdcaeae. 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/77khfP1Pfls3mFLSnvHgOh.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/77khfP1Pfls3mFLSnvHgOh.
{"copyright_id":"0xb48de280d4051e4a0d8f4710ed27e8227ec5848a0011982579d45c7dccdcaeae","isrc":"QZS7J2341779","name":"BAIXO - RXDXVIL Remix","registered_at":"2026-06-08T23:41:44Z","spotify_id":"1udilOjSWnLaYKZpvl5tn0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48de280d4051e4a0d8f4710ed27e8227ec5848a0011982579d45c7dccdcaeae. 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/1udilOjSWnLaYKZpvl5tn0.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/1udilOjSWnLaYKZpvl5tn0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd314c12dc3dcf779af3c90c59e5ad4a2c253a1d3d40f94916e1b2c6ef96649. 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/308a2Zn7yCTyH3W6xFsMUg.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/308a2Zn7yCTyH3W6xFsMUg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d2dc62cb2a480cfbc16f69c5478eb49a5f376b0b1c591384353ac29ef84cb1. 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/0gTj19rtkpjyss5dSAqLqc.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/0gTj19rtkpjyss5dSAqLqc.
{"copyright_id":"0xbcd68501d3e18fbc72a9a864fea25f3f9a77d7670d7bc575763767a5e5f164fd","isrc":"GBLV62310013","name":"BRAZILIAN MEMPHIS MANO","registered_at":"2026-06-06T20:14:37Z","spotify_id":"4gdcPSPjPWquRfdByUmA7I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd68501d3e18fbc72a9a864fea25f3f9a77d7670d7bc575763767a5e5f164fd. 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/4gdcPSPjPWquRfdByUmA7I.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/4gdcPSPjPWquRfdByUmA7I.
{"copyright_id":"0x53ab20cbd6c9f48eb82d7489827beecdb39f3e5e10c2495e5cdd31856fcccc4e","isrc":"QMFME2330079","name":"LOVELY BASTARDS - RXDXVIL Remix","registered_at":"2026-06-06T07:57:07Z","spotify_id":"5cbyopjrXtZN0gtkGuamAe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ab20cbd6c9f48eb82d7489827beecdb39f3e5e10c2495e5cdd31856fcccc4e. 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/5cbyopjrXtZN0gtkGuamAe.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/5cbyopjrXtZN0gtkGuamAe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36efe2c52ecfb78b1fbe4d3b2967667ab1c4af21937d16d0119e59899106c459. 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/4ztPORO3wqQsyTor8CiVNg.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/4ztPORO3wqQsyTor8CiVNg.
{"copyright_id":"0x5be601fedebf0a77101521317fe472f60a014c2da894e757bbacd06bfebac2e3","isrc":"QM6N22460232","name":"INTO DARKNESS","registered_at":"2026-06-20T17:15:45Z","spotify_id":"0LBidNZS6mxVaxEG456f9n","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be601fedebf0a77101521317fe472f60a014c2da894e757bbacd06bfebac2e3. 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/0LBidNZS6mxVaxEG456f9n.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/0LBidNZS6mxVaxEG456f9n.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a16a5d5677b4b6fdbdec5ad8444cc8de13915cf4bc4fa2214389c6c478cb360. 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/2XV7tm98cbNIHSv7DJvKn5.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/2XV7tm98cbNIHSv7DJvKn5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dd12181bf92be25d1216cfeae385bfa3890d4cf414ec5408cf1070e448cd33. 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/4RwsjGdH7g6PrTpb2P5VAL.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/4RwsjGdH7g6PrTpb2P5VAL.