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 0x3812fbdbe6e274ac0cd0035229d8c8f68138fd7044040a8e62da35f1b8fcfc23. 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/7c6d3d3a-015c-4f30-869e-b28a1b7fb938.json and https://artists.proofprofile.net/proofs/artist/7c6d3d3a-015c-4f30-869e-b28a1b7fb938.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x34215db0557e383d7e348c641ac5e95ec9816d12edf47d2fee24cc658c20750e","isrc":"USA2P2352774","name":"Vete A La Chingada","registered_at":"2026-06-07T23:05:43Z","spotify_id":"1eqg7izHLsKP1lJXjUK9QU","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 0x34215db0557e383d7e348c641ac5e95ec9816d12edf47d2fee24cc658c20750e. 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/1eqg7izHLsKP1lJXjUK9QU.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/1eqg7izHLsKP1lJXjUK9QU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc8db8fe9840765b7aba7061b13ba5648a224a32d6c75b94e724d598b38dcc1. 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/5fhh04EHwu2MGxBUXqPQmv.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/5fhh04EHwu2MGxBUXqPQmv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5cbd27d358fc944268357260bcde99e580ce34c79413a8298cb541468dc360. 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/469Y8JPmjzmNalEDWQ7cWS.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/469Y8JPmjzmNalEDWQ7cWS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0509c92701634afcd4b783b57f7c61a05ee1664a0e9b202d6ce8f4804e5539. 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/6dPxY1NI0ys3QjTSZTttg1.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/6dPxY1NI0ys3QjTSZTttg1.
{"copyright_id":"0xb4dde19c0240fd9dd48e8f458c4acba64c8ff923206a0fb0dac5f5a150c7ccc4","isrc":"USA2P2212774","name":"Una En Un Millon","registered_at":"2026-06-08T15:40:51Z","spotify_id":"4PymbhZd20OgKINlAktJ7z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dde19c0240fd9dd48e8f458c4acba64c8ff923206a0fb0dac5f5a150c7ccc4. 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/4PymbhZd20OgKINlAktJ7z.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/4PymbhZd20OgKINlAktJ7z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83336236ef99a96df6979d51649b4b171d5f9aff6ea2a951c9a1c266f3baaab. 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/5bkj9ys1llED4cY0mA09oi.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/5bkj9ys1llED4cY0mA09oi.
{"copyright_id":"0x7280a3f48e3ba27c100fd9d378c0807d8c663f84c91865ef6bbdece416efb9cd","isrc":"USA2P2345418","name":"En El Peligro","registered_at":"2026-06-24T07:37:59Z","spotify_id":"5462FVqGGSzCo6rUdYwKtv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7280a3f48e3ba27c100fd9d378c0807d8c663f84c91865ef6bbdece416efb9cd. 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/5462FVqGGSzCo6rUdYwKtv.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/5462FVqGGSzCo6rUdYwKtv.
{"copyright_id":"0xa6292a8288ff36a4eb0e20c910ab566cbc15d0f71a54e217dd9d07cdd140f1e8","isrc":"USA2P2345016","name":"El Brillo De Tus Ojitos","registered_at":"2026-06-04T11:18:51Z","spotify_id":"47DXGupStfH9zx9jyekm29","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6292a8288ff36a4eb0e20c910ab566cbc15d0f71a54e217dd9d07cdd140f1e8. 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/47DXGupStfH9zx9jyekm29.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/47DXGupStfH9zx9jyekm29.
{"copyright_id":"0xb4787c19abbd534dfb55e1e9e73e650ccb8237103d350c09c915ec5925846bff","isrc":"USA2P2247214","name":"Mil Pasos A La Luna","registered_at":"2026-06-27T20:52:44Z","spotify_id":"0qvNVn4kIUORzXyEgjtuZX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4787c19abbd534dfb55e1e9e73e650ccb8237103d350c09c915ec5925846bff. 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/0qvNVn4kIUORzXyEgjtuZX.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/0qvNVn4kIUORzXyEgjtuZX.
{"copyright_id":"0x1063327e7c6f4051bcb6bb7b7b4094ceae883c325f6ebcac2ca5bdffbbe475e3","isrc":"USA2P2229050","name":"Estrella Fugaz","registered_at":"2026-06-20T14:30:46Z","spotify_id":"5FJbFQTk19T9g0opBBfp7I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1063327e7c6f4051bcb6bb7b7b4094ceae883c325f6ebcac2ca5bdffbbe475e3. 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/5FJbFQTk19T9g0opBBfp7I.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/5FJbFQTk19T9g0opBBfp7I.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33314431660b96875349d12c8fd1ef04f18eacf06efbae0049c49419dbfd55e6. 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/2B8UJ9ijYyTz2gocOkt1je.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/2B8UJ9ijYyTz2gocOkt1je.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4172acc265984747135974e430ee1ad382348d91e780e6684360236c3c40026c. 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/7yA1U566ApnNnsmc6BUvTe.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/7yA1U566ApnNnsmc6BUvTe.
{"copyright_id":"0xcebc9c6de5d2d761bb6afdced92fb5d0c6d67c83a19ebe2da419212d66ae2b89","isrc":"USA2P2144874","name":"En Ti Pensando","registered_at":"2026-06-08T07:18:03Z","spotify_id":"4KwU97t7Fsqn8OIyBtEgoy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebc9c6de5d2d761bb6afdced92fb5d0c6d67c83a19ebe2da419212d66ae2b89. 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/4KwU97t7Fsqn8OIyBtEgoy.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/4KwU97t7Fsqn8OIyBtEgoy.
{"copyright_id":"0xfc8e34f718ddd5dbc575f15c718dbe945ba80f87bc3a1cf79128c4e1275a437b","isrc":"GX3HH2137887","name":"Reina De Mi Corazon","registered_at":"2026-06-09T12:08:44Z","spotify_id":"16PdxTKKqy8oOLeOlu09T1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8e34f718ddd5dbc575f15c718dbe945ba80f87bc3a1cf79128c4e1275a437b. 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/16PdxTKKqy8oOLeOlu09T1.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/16PdxTKKqy8oOLeOlu09T1.
{"copyright_id":"0x9a0c32cbd39d4d70767ad9353114d575291d6348a4d6569131ee98f0efdda578","isrc":"GBSMU9836045","name":"Sin Cambios Ni Detalles","registered_at":"2026-06-21T13:06:39Z","spotify_id":"2cS3hHHbrkja6xkK6dSeRO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0c32cbd39d4d70767ad9353114d575291d6348a4d6569131ee98f0efdda578. 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/2cS3hHHbrkja6xkK6dSeRO.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/2cS3hHHbrkja6xkK6dSeRO.
{"copyright_id":"0x0fec9075395104881eac084cf0affb3f4cf9b0fec317158249dffc7566fe6d1a","isrc":"GBSMU9411729","name":"Ojos Rojos","registered_at":"2026-06-08T10:18:26Z","spotify_id":"1ieMgfzRHfwL9XWhBkEXr4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fec9075395104881eac084cf0affb3f4cf9b0fec317158249dffc7566fe6d1a. 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/1ieMgfzRHfwL9XWhBkEXr4.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/1ieMgfzRHfwL9XWhBkEXr4.