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 0xc0c42abdc2a662f83270aa97cc0a468e85ce34f190ce5c36c98a1b5432c405de. 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/d3ba303b-e33d-45be-9609-d6d0829e84ce.json and https://artists.proofprofile.net/proofs/artist/d3ba303b-e33d-45be-9609-d6d0829e84ce.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 0x10040017007ca5efc306c25075c33e76b6cc03e539dbd6dd8f9b369e3ffed1d6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1rypXxesuNRt89KUAQNvjn.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/1rypXxesuNRt89KUAQNvjn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10040017007ca5efc306c25075c33e76b6cc03e539dbd6dd8f9b369e3ffed1d6. 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/1IHSwWAY2LzCvGo07UieWZ.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/1IHSwWAY2LzCvGo07UieWZ.
Déjame, Si Has Olvidado Lo Que Te Quiero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56042ef45945f6e2ce6f4660bdd7521127aa79ac943878e04c820fd45ea20395. 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/7MVtOh4a7VyDtxsyGAQqQC.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/7MVtOh4a7VyDtxsyGAQqQC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bdee5637157fb1a59f9a3164e20d176fb0186b5072fb479facbfb49279c248. 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/7bCh2WXIOdvcKw7FMRwptv.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/7bCh2WXIOdvcKw7FMRwptv.
{"copyright_id":"0xc5f8a2d812ecea22deb9d088e23fdcad6f6ac60de8439fad0e5be33fcda07194","isrc":"QM4TW1805722","name":"No Me Enseñaste","registered_at":"2026-06-29T14:07:28Z","spotify_id":"2Ebpg3P3Jqy1kOVtDM9VkA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f8a2d812ecea22deb9d088e23fdcad6f6ac60de8439fad0e5be33fcda07194. 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/2Ebpg3P3Jqy1kOVtDM9VkA.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/2Ebpg3P3Jqy1kOVtDM9VkA.
Tú Eres Mi Destino/Solamente Tu Amante/Un Día Perdido/Escrito en el Cielo/Distinta Gente/Eres Mi Dulce Veneno
En Tu Carpa Nació el Amor / Canto a Mariel
Alguien como yo / Abrazame otra vez / No vuelvas a intentar / Sabes como te quiero / Como pienso yo / Tu por mi Yo por ella
Fingias Amor / Leña seca / No me acostumbro / A ti luna
{"copyright_id":"0x3f38f9f62ab58becd1b0da855c05126109b2bf493ea7b72d19e01094fa5aaecc","isrc":"ARG991025405","name":"Duelo de Guitarras","registered_at":"2026-06-05T04:57:17Z","spotify_id":"5rnXS43Hx4oFYuZ3S4ARCb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f38f9f62ab58becd1b0da855c05126109b2bf493ea7b72d19e01094fa5aaecc. 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/5rnXS43Hx4oFYuZ3S4ARCb.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/5rnXS43Hx4oFYuZ3S4ARCb.