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 0x3efe0ad9310716dd475b23278ea46475d05a2448cd8cdacb9d18bb0e7eac72ba. 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/9172311b-f8fb-4c51-b1f3-ae24e02b1e41.json and https://artists.proofprofile.net/proofs/artist/9172311b-f8fb-4c51-b1f3-ae24e02b1e41.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 0x1b75f627bcb6a7e4513bee882c736d00a06c2a7e6561725881579dd42514e6a1. 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/2Jke1EygzpLE0yK2Nil7by.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/2Jke1EygzpLE0yK2Nil7by.
{"copyright_id":"0x6f16a38f03581712a355d679bb25cddeb6c6fcbab9b3961de6fb7041d03e56e6","isrc":"QZNJV2014323","name":"Soldado Blanco","registered_at":"2026-06-29T07:51:14Z","spotify_id":"2zGDxCrVLMEGxXzxqaQLa9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f16a38f03581712a355d679bb25cddeb6c6fcbab9b3961de6fb7041d03e56e6. 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/2zGDxCrVLMEGxXzxqaQLa9.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/2zGDxCrVLMEGxXzxqaQLa9.
En El Radio Un Cochinero “Lluvia de Balas”
{"copyright_id":"0x408bd17e11efee3a47f73de07f0a6ac93c012222be090572872ebb2c08232cc0","isrc":"QZQMB2105358","name":"Los Drones - En Vivo","registered_at":"2026-06-29T07:53:42Z","spotify_id":"4FX3H8XGveeadejd9zbin6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408bd17e11efee3a47f73de07f0a6ac93c012222be090572872ebb2c08232cc0. 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/4FX3H8XGveeadejd9zbin6.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/4FX3H8XGveeadejd9zbin6.
{"copyright_id":"0x2c9a6b3386ed49d2c9b3bc636fd9bd4dc7efa0f62b2919a13c0bcb9fd722c186","isrc":"QZQMB2105428","name":"El Fantasma - En Vivo","registered_at":"2026-06-29T07:51:00Z","spotify_id":"3cf9OJPupjyINu0msbS03y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9a6b3386ed49d2c9b3bc636fd9bd4dc7efa0f62b2919a13c0bcb9fd722c186. 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/3cf9OJPupjyINu0msbS03y.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/3cf9OJPupjyINu0msbS03y.
{"copyright_id":"0x47a0c4b8ad2824adb7075cb8401b1da4fad7db13f5480a19a10a00c9b3f0c583","isrc":"QZQMB2105883","name":"Zona De Guerra - En Vivo","registered_at":"2026-06-08T19:01:54Z","spotify_id":"2lMVGzXiJy5NyTJz3VFDqo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a0c4b8ad2824adb7075cb8401b1da4fad7db13f5480a19a10a00c9b3f0c583. 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/2lMVGzXiJy5NyTJz3VFDqo.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/2lMVGzXiJy5NyTJz3VFDqo.
{"copyright_id":"0x7e274be8dfbd1a3e44bdab4534de5a946b494394c05f9e5dbceb8e4f92e0c5fc","isrc":"QZQMB2106263","name":"El Chuky","registered_at":"2026-06-06T03:14:27Z","spotify_id":"3zW1BQggNVVkFZtzpGfDLs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e274be8dfbd1a3e44bdab4534de5a946b494394c05f9e5dbceb8e4f92e0c5fc. 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/3zW1BQggNVVkFZtzpGfDLs.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/3zW1BQggNVVkFZtzpGfDLs.
Pisteando Con Larry Hernández, Vol. 1 (En Vivo)
{"copyright_id":"0xb38b2fbc93f34ecc7a943fcc2f8f46e011384d4dc0f78fdbcc888e93da6ca196","isrc":"USANG2261531","name":"Sigo Con el Mando (En Vivo)","registered_at":"2026-06-08T02:27:42Z","spotify_id":"5yd7hNS8zvJ8quwGPihGjt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38b2fbc93f34ecc7a943fcc2f8f46e011384d4dc0f78fdbcc888e93da6ca196. 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/5yd7hNS8zvJ8quwGPihGjt.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/5yd7hNS8zvJ8quwGPihGjt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ff2e191434a2807e11383cf523693c2b26ccb6554670abfa799f8a6d693917. 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/4DAjmMBnrY4splc1lQM6tP.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/4DAjmMBnrY4splc1lQM6tP.