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 0x3118774cf606b6be516f48851166d2f7427cf641cdcc0f4509e7ca1c9c265892. 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/719102b0-9222-47b3-a017-1c37fce4523d.json and https://artists.proofprofile.net/proofs/artist/719102b0-9222-47b3-a017-1c37fce4523d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x4bd9fdb792f79c4edc0f868b5906836339c9f2158deba4403b40e27c4ce770ba","isrc":"TCACO1692905","name":"Dicen Que el Amor","registered_at":"2026-06-08T19:21:05Z","spotify_id":"5dmwDWdM3UH55NeRBfznZi","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 0x4bd9fdb792f79c4edc0f868b5906836339c9f2158deba4403b40e27c4ce770ba. 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/5dmwDWdM3UH55NeRBfznZi.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/5dmwDWdM3UH55NeRBfznZi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b887ec6b87a80ca6aa83bf175c3be6a8eb897f6df61da1b8cc08f94f81abcc. 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/5G9oZJzV9GOK9bRZ42aWet.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/5G9oZJzV9GOK9bRZ42aWet.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4c3ad8b7fbdde5b81b98303b832405bc7cc60402d3c4974c8c193fc4ddea58. 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/307edUZr7J1O4GkDuYy6xf.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/307edUZr7J1O4GkDuYy6xf.
{"copyright_id":"0xccba386aa5ae869b2dc9abf55765ab3ec2dfc1a506f2ccf44ed1acfcc4e90057","isrc":"TCACO1692908","name":"Soy Prisionero","registered_at":"2026-06-21T21:33:47Z","spotify_id":"0IbZNNDxiTceLwV9o7LPIz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccba386aa5ae869b2dc9abf55765ab3ec2dfc1a506f2ccf44ed1acfcc4e90057. 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/0IbZNNDxiTceLwV9o7LPIz.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/0IbZNNDxiTceLwV9o7LPIz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d801940d8c7b650756319d01d563e7a246284056a42d0c150d63865d2131998. 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/5kFHe5xvYpUg38g4zKf37H.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/5kFHe5xvYpUg38g4zKf37H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21aa123ffae52490e07169801549c8b904db4b569176dc7c1b496c5fc582a69a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3QjND3Wg6rGgo8cux7n9xP.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/3QjND3Wg6rGgo8cux7n9xP.
{"copyright_id":"0xc54bf98049358595d226cebccb4db5f6dd91a3c272afe40257044149a6cee75c","isrc":"TCACL1672670","name":"Cuando Vas a Entender","registered_at":"2026-06-07T19:18:23Z","spotify_id":"0eL6q96Xx6skcfmSpSVCaq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54bf98049358595d226cebccb4db5f6dd91a3c272afe40257044149a6cee75c. 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/0eL6q96Xx6skcfmSpSVCaq.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/0eL6q96Xx6skcfmSpSVCaq.
{"copyright_id":"0x1a63ecaf35abc833e4eac485d84d77fa3b150ac11bd7aae467f3868634e52079","isrc":"TCACO1692912","name":"Ni en Google Ni en Face (feat. Ligado)","registered_at":"2026-06-24T07:56:23Z","spotify_id":"0sa5Ce5iMBWyBLxes8HWIB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a63ecaf35abc833e4eac485d84d77fa3b150ac11bd7aae467f3868634e52079. 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/0sa5Ce5iMBWyBLxes8HWIB.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/0sa5Ce5iMBWyBLxes8HWIB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e469c7a43682aaac856641dcaa1a42f5f32cf51dd212d4105497e42862d602. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:41:51Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1bgWEDbcQIpsA6PJpkCoP6.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/1bgWEDbcQIpsA6PJpkCoP6.
{"copyright_id":"0x1da052453ca96717f2601aef4dfe8d02d4997ac98cf91c6218763c3410e61eab","isrc":"USANG2295448","name":"Aunque Digas (En Vivo)","registered_at":"2026-06-19T23:57:28Z","spotify_id":"1wgGBuqjVv7CliMJsYBwKs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da052453ca96717f2601aef4dfe8d02d4997ac98cf91c6218763c3410e61eab. 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/1wgGBuqjVv7CliMJsYBwKs.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/1wgGBuqjVv7CliMJsYBwKs.
{"copyright_id":"0x8d5d6934e196f1faa59d9a3cb5e06e39b4042d1c19be684d3899fec50b8fbfb7","isrc":"QZNFJ2300541","name":"El Tao Tao - Live Session","registered_at":"2026-06-21T21:39:46Z","spotify_id":"0rIOJXsNnnAQpn4yx5vvHh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5d6934e196f1faa59d9a3cb5e06e39b4042d1c19be684d3899fec50b8fbfb7. 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/0rIOJXsNnnAQpn4yx5vvHh.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/0rIOJXsNnnAQpn4yx5vvHh.
{"copyright_id":"0x4776d7f4bda61a25fedfebafc27f9ba6cbcff2d59edfa691d11b028b6f46bd37","isrc":"QZNFJ2204539","name":"El Paso Del Takuache","registered_at":"2026-06-06T09:45:41Z","spotify_id":"1nGV2dsyvEERSd980EZ4e3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4776d7f4bda61a25fedfebafc27f9ba6cbcff2d59edfa691d11b028b6f46bd37. 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/1nGV2dsyvEERSd980EZ4e3.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/1nGV2dsyvEERSd980EZ4e3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93427f289857ebdf50b3c909e92d642602fd4f68e9675a8835b6d5b1d14259c. 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/0uRp8VZJet6eRHhKgvsBXP.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/0uRp8VZJet6eRHhKgvsBXP.
{"copyright_id":"0xdcb67568cf682d45c58ffcacdf188a3cab069432b6a491eed3f01703d9db88cb","isrc":"US3DF2234753","name":"Cokein Cumbia","registered_at":"2026-06-17T22:30:01Z","spotify_id":"5q85qSPHwiFXEslM47YT0Y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb67568cf682d45c58ffcacdf188a3cab069432b6a491eed3f01703d9db88cb. 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/5q85qSPHwiFXEslM47YT0Y.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/5q85qSPHwiFXEslM47YT0Y.
{"copyright_id":"0xb456f0ff776aadaf7b1f09e06f3e0c61981ca2da072864b387da001957d62515","isrc":"TCAFE2003341","name":"Mi Trokita Cumbia","registered_at":"2026-06-04T07:51:39Z","spotify_id":"0TwWnaZ6JGfVuN4iZq2BzJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb456f0ff776aadaf7b1f09e06f3e0c61981ca2da072864b387da001957d62515. 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/0TwWnaZ6JGfVuN4iZq2BzJ.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/0TwWnaZ6JGfVuN4iZq2BzJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392ce2bb84e1b82911f3434444eb8e188e0f2da0361a157bd2222692933f94e7. 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/3SuR5sAaOlN10ym1AfNH4h.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/3SuR5sAaOlN10ym1AfNH4h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601a86e502f5e2117f4725614488fa95768ede5fbd0af25cfae44ada8cddbc75. 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/3id0zEPlZ4lFoj4GuK0ENI.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/3id0zEPlZ4lFoj4GuK0ENI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77159d4f1fedafd93d34e474993ee542a02c105e13eaa99da5fbc163aaf73189. 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/4i9b4BSqo6AF5aCKvSEBo2.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/4i9b4BSqo6AF5aCKvSEBo2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b60b1508ba276a905c056dd2ec2018c23862d2eab1971a305da09853ff5630. 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/7tOj3QbTGzAaLiQefeAs2i.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/7tOj3QbTGzAaLiQefeAs2i.
{"copyright_id":"0xb1af0edffc196f6ff4131e1631676911ddc1af854ac16615c2b5b85cfdfb3af9","isrc":"TCACY1749242","name":"Toparme a Mi Ex","registered_at":"2026-06-17T22:29:55Z","spotify_id":"3H8Iv2S5w0kPQrnC1of8Jo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1af0edffc196f6ff4131e1631676911ddc1af854ac16615c2b5b85cfdfb3af9. 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/3H8Iv2S5w0kPQrnC1of8Jo.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/3H8Iv2S5w0kPQrnC1of8Jo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d801940d8c7b650756319d01d563e7a246284056a42d0c150d63865d2131998. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7gDDLqkfExgDeboX2b7lto.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/7gDDLqkfExgDeboX2b7lto.
{"copyright_id":"0xc54bf98049358595d226cebccb4db5f6dd91a3c272afe40257044149a6cee75c","isrc":"TCACL1672670","name":"Cuando Vas a Entender","registered_at":"2026-06-07T19:18:23Z","spotify_id":"5AA0lwaH9gKMMVNHhrEEtY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54bf98049358595d226cebccb4db5f6dd91a3c272afe40257044149a6cee75c. 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/5AA0lwaH9gKMMVNHhrEEtY.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/5AA0lwaH9gKMMVNHhrEEtY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45fd72f40d6d78409768eab01a0938a9f7eb2705b57466f3edb369b317b3736. 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/2y5b4IzZEzgomlmQqScuxL.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/2y5b4IzZEzgomlmQqScuxL.