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 0x34f4361833e06556452b20cebd50d57560791819deb4e2649e9050adfe3bf63f. 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/5f132fb3-8337-411b-a924-f12d4848466f.json and https://artists.proofprofile.net/proofs/artist/5f132fb3-8337-411b-a924-f12d4848466f.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 0x597f790b0a15d1704e129a37e291110508f89395cdb96f8b1d0b13bb4c50702a. 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/3IhjkeOZeR1N9dgGny8WGu.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/3IhjkeOZeR1N9dgGny8WGu.
{"copyright_id":"0x576f4a18256b39babfca230e49f916e9eded5a711d02ad6fc805853dae03e0a9","isrc":"MX2971200415","name":"La Última Canción","registered_at":"2026-06-06T05:16:26Z","spotify_id":"3VGDJEFDGdQ0ywaOtBz6Yb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576f4a18256b39babfca230e49f916e9eded5a711d02ad6fc805853dae03e0a9. 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/3VGDJEFDGdQ0ywaOtBz6Yb.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/3VGDJEFDGdQ0ywaOtBz6Yb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16981af67044563838999c364b0b36fe3a2455675a460f6cdab04471b699e2c6. 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/2H4qJKK4lMPfSuwjbjGbVP.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/2H4qJKK4lMPfSuwjbjGbVP.
{"copyright_id":"0x583e50b5bb9bfdaa7004dcdf908775eb7c0c6b7a962dce61596802db8c0f9e71","isrc":"MX2971200424","name":"Falsa Traición","registered_at":"2026-06-04T09:48:41Z","spotify_id":"3LgnwC3sPFbjyDSQI0PZRI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583e50b5bb9bfdaa7004dcdf908775eb7c0c6b7a962dce61596802db8c0f9e71. 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/3LgnwC3sPFbjyDSQI0PZRI.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/3LgnwC3sPFbjyDSQI0PZRI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37778269c303d65158f314db4fae7e79bee355123111d6d594ed4939ca831782. 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/1H2YfLMeNLO6iurp2I0pmW.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/1H2YfLMeNLO6iurp2I0pmW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91606b058790f13972a130116f90509761df5542cf8ec56ba29aa61ac310376. 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/1oxPTrQuidojzSYg2t1fB8.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/1oxPTrQuidojzSYg2t1fB8.
{"copyright_id":"0x9c5fa16adf9e613626dc1be9c0160d54691d9f2b951640b4c396c34b2f68a7c2","isrc":"USASN1302051","name":"Por Que Te Tengo Que Olvidar","registered_at":"2026-06-05T09:11:59Z","spotify_id":"4yV699yWj5OnboFsF2eHtR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5fa16adf9e613626dc1be9c0160d54691d9f2b951640b4c396c34b2f68a7c2. 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/4yV699yWj5OnboFsF2eHtR.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/4yV699yWj5OnboFsF2eHtR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb87674dd39b29a94e469ad711258b4f6e91863dd4ebddf990a5de70b6398cf4. 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/5EuN8QDRC9S9DNPOZvSRk8.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/5EuN8QDRC9S9DNPOZvSRk8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df3f0c04144aee3fa20ed3b70a5653f2560105e1f753851bedc43db6891189b. 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/5LvJDVQzskRm4wUygJEIzt.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/5LvJDVQzskRm4wUygJEIzt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580c85b2313bfd9b4036277426df67e32a58ec6684be5f2bd8ed794da688f915. 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/0hcs9RcvXinEUeRUXzd5Vb.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/0hcs9RcvXinEUeRUXzd5Vb.
{"copyright_id":"0x03a701fb8a69568d9b0076a5b452773e533d21c2c81d87affa0a592b472e6ec5","isrc":"QMEU31608059","name":"Pense Em Mim (Piensa en Mí)","registered_at":"2026-06-08T11:23:30Z","spotify_id":"1YfAqUitTrlm5J1uW8gRFq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a701fb8a69568d9b0076a5b452773e533d21c2c81d87affa0a592b472e6ec5. 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/1YfAqUitTrlm5J1uW8gRFq.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/1YfAqUitTrlm5J1uW8gRFq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c90cb396087772c75cbf3aa4654390e1e0d52a577c60cca18ae5b14c7c62665. 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/3uDB3aejp79SnVhSdjCdEr.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/3uDB3aejp79SnVhSdjCdEr.
{"copyright_id":"0x0a63ab772c06c4d59d50c869a40c9cad64517b2aed74dcccd54bd5a6bd8bb2bb","isrc":"QMEU31608061","name":"La Pelusa","registered_at":"2026-06-07T06:51:48Z","spotify_id":"3Sovk8DxqQ9pdvSwxVRalS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a63ab772c06c4d59d50c869a40c9cad64517b2aed74dcccd54bd5a6bd8bb2bb. 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/3Sovk8DxqQ9pdvSwxVRalS.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/3Sovk8DxqQ9pdvSwxVRalS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620b7cdf73a94675589893baebe9a62c89816f2b67280354225168833a99fdbd. 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/2UJXT8t5hGPxW0nLAN7iFq.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/2UJXT8t5hGPxW0nLAN7iFq.
{"copyright_id":"0x277ea6baf1dc5622fed371017265fc0d3ab547fd5f814f2d929fc038de459462","isrc":"QMEU31608063","name":"Cuando Volverás Amor","registered_at":"2026-06-06T03:16:07Z","spotify_id":"1zZourySoJ9JkqAyE3i5Tv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277ea6baf1dc5622fed371017265fc0d3ab547fd5f814f2d929fc038de459462. 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/1zZourySoJ9JkqAyE3i5Tv.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/1zZourySoJ9JkqAyE3i5Tv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4146270b3d6896b53c9187d82bdff85b00e78731a8da4c117efb945ce5636834. 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/6XqXTQfOU8SGVxy7E1WCZF.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/6XqXTQfOU8SGVxy7E1WCZF.
{"copyright_id":"0x5c0e7c7cc354b9dd3b242fdc6b79938d414abdd7b6e5421439a5a229bd227ba5","isrc":"QMEU31608065","name":"Cumbia Caliente","registered_at":"2026-06-05T12:02:16Z","spotify_id":"3IHS9BkUeep73YWINUV3Rb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0e7c7cc354b9dd3b242fdc6b79938d414abdd7b6e5421439a5a229bd227ba5. 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/3IHS9BkUeep73YWINUV3Rb.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/3IHS9BkUeep73YWINUV3Rb.
{"copyright_id":"0xdab11594c5c58d80fc67924de697fa8334119a37efb7cdceee2d60508bf57789","isrc":"QMEU31608066","name":"Lost In Love (Perdido en el Amor)","registered_at":"2026-06-10T02:57:15Z","spotify_id":"3izUdGZJvVtgs7OhWH2qES","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab11594c5c58d80fc67924de697fa8334119a37efb7cdceee2d60508bf57789. 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/3izUdGZJvVtgs7OhWH2qES.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/3izUdGZJvVtgs7OhWH2qES.
{"copyright_id":"0x6c1e59ac093bdd038d660a944df9a7e311fca8d38d5846a185a52dc7e600f40f","isrc":"QMEU31608067","name":"Mi Pequeño Amor","registered_at":"2026-06-05T04:39:54Z","spotify_id":"18BTxIc7PUuinvRrpbzBNl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1e59ac093bdd038d660a944df9a7e311fca8d38d5846a185a52dc7e600f40f. 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/18BTxIc7PUuinvRrpbzBNl.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/18BTxIc7PUuinvRrpbzBNl.
{"copyright_id":"0xf0c02d55832035fbe0c8b1e8ef452283d60c06775bc19d4eaba7bccffd498791","isrc":"QMEU31608068","name":"El Bala Bala Balaju","registered_at":"2026-06-11T04:19:30Z","spotify_id":"12giwsg9vUsRWTohK9t6s7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c02d55832035fbe0c8b1e8ef452283d60c06775bc19d4eaba7bccffd498791. 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/12giwsg9vUsRWTohK9t6s7.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/12giwsg9vUsRWTohK9t6s7.
{"copyright_id":"0x50c2d1c21ad162612a2b7bdda92adc7409d82564887d84e04892033113c25b2c","isrc":"QMEU31608069","name":"Dulcemente Enamorada","registered_at":"2026-06-05T08:14:33Z","spotify_id":"5jyz2rQpVRtmvz4aMDiCbh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c2d1c21ad162612a2b7bdda92adc7409d82564887d84e04892033113c25b2c. 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/5jyz2rQpVRtmvz4aMDiCbh.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/5jyz2rQpVRtmvz4aMDiCbh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fd8a2aa88b7bbae5c919aadbd7512ca0fe4a8c41f93a9fa1b0311bd8c283fe. 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/2AZ9kPTOGJz7gp6Yv1uLP2.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/2AZ9kPTOGJz7gp6Yv1uLP2.
{"copyright_id":"0xbea6cbcf93824a8f34ef709ae04568071bad02e7a8e1849c344ba0defb3a686d","isrc":"QZHZ51938092","name":"Llegó Navidad","registered_at":"2026-06-20T08:47:59Z","spotify_id":"6Y8B6M2wqBdDyQrgg27bIn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea6cbcf93824a8f34ef709ae04568071bad02e7a8e1849c344ba0defb3a686d. 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/6Y8B6M2wqBdDyQrgg27bIn.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/6Y8B6M2wqBdDyQrgg27bIn.