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 0x217c7fdf134426bb40612712f701f7eb9f2a567a81c57a2e14003e7da18aa5b6. 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/f9db60e4-6051-42a8-9b50-f9c2c5be0e9d.json and https://artists.proofprofile.net/proofs/artist/f9db60e4-6051-42a8-9b50-f9c2c5be0e9d.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 0x0313e33ecd49b5f6017d57135f5847b4f1624c8c784a1402e8d471a29646ea56. 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/4MEWtzQosNIHb5CFuymO7X.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/4MEWtzQosNIHb5CFuymO7X.
{"copyright_id":"0xcce5768cb995f9723f54a791d4c8905de3e2a5ca5058a1da05b2590fde2750df","isrc":"QZN882353309","name":"Pobre Corazón - En Vivo","registered_at":"2026-06-01T05:36:11Z","spotify_id":"1AX4aybSRyXHWrjg27wTFE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce5768cb995f9723f54a791d4c8905de3e2a5ca5058a1da05b2590fde2750df. 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/1AX4aybSRyXHWrjg27wTFE.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/1AX4aybSRyXHWrjg27wTFE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313c0c358c143e1882cf48a41e0d0080e0d15bbfdaef58f01d734e827548c13d. 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/4DMZ2TItp0a02vpB6E8Dok.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/4DMZ2TItp0a02vpB6E8Dok.
{"copyright_id":"0x313c0c358c143e1882cf48a41e0d0080e0d15bbfdaef58f01d734e827548c13d","isrc":"ARP7V2400014","name":"LADRONA - con Mario Luis","registered_at":"2026-06-02T00:35:46Z","spotify_id":"4NetJxWmC2UQfzesxC4Eon","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313c0c358c143e1882cf48a41e0d0080e0d15bbfdaef58f01d734e827548c13d. 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/4NetJxWmC2UQfzesxC4Eon.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/4NetJxWmC2UQfzesxC4Eon.
Superbailables de Siempre (Mixed by DJ Red)
{"copyright_id":"0x313c0c358c143e1882cf48a41e0d0080e0d15bbfdaef58f01d734e827548c13d","isrc":"ARP7V2400014","name":"LADRONA - con Mario Luis","registered_at":"2026-06-02T00:35:46Z","spotify_id":"3xEVUB4ksUxyskDuy7VYQ6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313c0c358c143e1882cf48a41e0d0080e0d15bbfdaef58f01d734e827548c13d. 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/3xEVUB4ksUxyskDuy7VYQ6.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/3xEVUB4ksUxyskDuy7VYQ6.
ONDA SABANERA / Zapada DELUXE! en UN POCO DE RUIDO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339cc741f727c7033487147815703f1aa0427ddbeb966d85068eda5c18452bed. 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/3wJbMRFXELKYMUsJqEBTwW.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/3wJbMRFXELKYMUsJqEBTwW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba41f455b3463c3ab4b1ff4fd7dec4e5b548129e0df39d59620cd93221149a5. 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/1U0hCARhX7AWAdt2W9pP0K.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/1U0hCARhX7AWAdt2W9pP0K.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412f52e78dfe8480555011bdd460c749f57a26d2a2e55167e5f5a6363783ec1c. 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/6oJbE6JBZlQ3fAG2EHks7k.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/6oJbE6JBZlQ3fAG2EHks7k.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ef48ede7604110b4e62af4dadb8299e9b638e4a473e92385e2e5a14056cf3c. 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/4fMZbdOXAq3d6NXG0FIsu5.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/4fMZbdOXAq3d6NXG0FIsu5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc072f882a55e728b1d28dc9a16ecde89857593e994cf5648553eab0b7f4e6159. 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/48EQvCyBs148ftE5mswuzk.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/48EQvCyBs148ftE5mswuzk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb422faf0c2e7f0bae75a1c466da67a297b7fd7b725917b780af78a73bd63dd87. 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/49vY2bkIXvw9RNZlIwR9f2.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/49vY2bkIXvw9RNZlIwR9f2.
{"copyright_id":"0x9f3769e8b94565af8a1596141ae6f5cf0c8e4f9b55ba451cfa03e47baaba944f","isrc":"AR5UH2400509","name":"Cumbia Salvaje","registered_at":"2026-06-06T01:34:35Z","spotify_id":"035fV4HoK3oulGxX5PowUy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3769e8b94565af8a1596141ae6f5cf0c8e4f9b55ba451cfa03e47baaba944f. 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/035fV4HoK3oulGxX5PowUy.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/035fV4HoK3oulGxX5PowUy.
{"copyright_id":"0x5265b2610cad24c7962b7ae0285e9ee3a48af103f9da3f75f96291a51f1b091c","isrc":"AR5UH2400510","name":"La Negra Campanera","registered_at":"2026-06-04T10:32:48Z","spotify_id":"3UFEgogxEdjmWprQ6jcns0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5265b2610cad24c7962b7ae0285e9ee3a48af103f9da3f75f96291a51f1b091c. 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/3UFEgogxEdjmWprQ6jcns0.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/3UFEgogxEdjmWprQ6jcns0.
{"copyright_id":"0x0bfe37c7da5eaba1985a4a2fc0ac8f7730eafff969e31f8ef66d30ec185795cd","isrc":"AR5UH2400511","name":"Tus Ojos Lloran Por Amor","registered_at":"2026-06-04T09:55:35Z","spotify_id":"4vKxsjkzsBFCDJSFkV5QAP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfe37c7da5eaba1985a4a2fc0ac8f7730eafff969e31f8ef66d30ec185795cd. 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/4vKxsjkzsBFCDJSFkV5QAP.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/4vKxsjkzsBFCDJSFkV5QAP.
{"copyright_id":"0xf2f39002c23985bd3e5fb73aa927bf484eabfc615cf611aaf647770f3a4cef41","isrc":"AR5UH2400512","name":"Cumbia Sampuesana","registered_at":"2026-06-04T10:33:36Z","spotify_id":"45qyRjjx4dNiWWamOpofaZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f39002c23985bd3e5fb73aa927bf484eabfc615cf611aaf647770f3a4cef41. 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/45qyRjjx4dNiWWamOpofaZ.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/45qyRjjx4dNiWWamOpofaZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e62d89a12833eb05fcf6dea7f0a9d9fad533fedae8e6c029602d818167ae960. 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/4LFoYfOlB0CiLZrhgvl4qU.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/4LFoYfOlB0CiLZrhgvl4qU.
{"copyright_id":"0x161a8a2a3841c1aafafeefe215d27563eedd3ff81c0740f3e6b8d6658bb7cc9c","isrc":"AR5UH2400514","name":"El Macho","registered_at":"2026-06-05T08:02:17Z","spotify_id":"6V9k300OSOKqAB4oEXfFye","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161a8a2a3841c1aafafeefe215d27563eedd3ff81c0740f3e6b8d6658bb7cc9c. 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/6V9k300OSOKqAB4oEXfFye.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/6V9k300OSOKqAB4oEXfFye.