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 0x753fff9e3e05ea97700922a691b0549536b28605927c656708d2de11ef3e9ad0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2246ed59-c35e-4a0b-9521-450728069221.json and https://artists.proofprofile.net/proofs/artist/2246ed59-c35e-4a0b-9521-450728069221.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Je to zázrak (Angélique Marquise des Anges)
Láska zázraky vykoná (Angélique Marquise des Anges)
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 0x80e658fd42a5f56c80f97fc4834905380e64e2ba99a64f98492a2471e3fb518b. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1wQ26uHhpLukhNqWP5hQ5e.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/1wQ26uHhpLukhNqWP5hQ5e.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5050b55f1b9e27f1ffa0b9e2ea3e5ab6f7895a19c07c1e0802d10bfa5e47df. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5WuOfWIi2KsZ42E7OAHsRC.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/5WuOfWIi2KsZ42E7OAHsRC.
Co na tom je tak zlého (I Don't Know How To Love Him)
Chci žít Tvou láskou [I Want To Spend My Lifetime Loving You] (feat. Marian Vojtko)
{"copyright_id":"0xfbcd4b5e31b6528cb031de01c985b1c288d7a6e9202dbf5bbb7a5b37f8614821","isrc":"CZA540789819","name":"Láska Zázraky Vykoná","registered_at":"2026-06-21T07:41:58Z","spotify_id":"1VevswKTQRpA9JNlsdMN5i","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcd4b5e31b6528cb031de01c985b1c288d7a6e9202dbf5bbb7a5b37f8614821. 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/1VevswKTQRpA9JNlsdMN5i.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/1VevswKTQRpA9JNlsdMN5i.
{"copyright_id":"0x7ee3d609351ed101d107f32c4420f308afd5cb3c7c15bcb4e64aaac2e8a968b1","isrc":"CZA540789803","name":"Zásnubní Terčet","registered_at":"2026-06-21T07:41:30Z","spotify_id":"0ZGZchA8m2aZwKn6PSedqP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee3d609351ed101d107f32c4420f308afd5cb3c7c15bcb4e64aaac2e8a968b1. 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/0ZGZchA8m2aZwKn6PSedqP.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/0ZGZchA8m2aZwKn6PSedqP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e28dd27b0cdcd533ae51627ada94f0517522685800a7d4b93e951d642f95324. 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/423Z34I6nB48E1ykBIVZqp.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/423Z34I6nB48E1ykBIVZqp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb4972d0b4377295a383de2c13d81816520e9f8890b930a4840276584d28c8c. 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/3MAC8H2MPxUaDYvHbNUvML.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/3MAC8H2MPxUaDYvHbNUvML.
{"copyright_id":"0xadbe89e32646299e15f3cb93f0c349a5a39b8d113bdfb77b2dacf57739bfee42","isrc":"CZA540789820","name":"Doufám, Že Mi Sílu Bůh Dá","registered_at":"2026-06-23T12:03:31Z","spotify_id":"6VM3ZyFH3DgY8pge1ROsO0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbe89e32646299e15f3cb93f0c349a5a39b8d113bdfb77b2dacf57739bfee42. 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/6VM3ZyFH3DgY8pge1ROsO0.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/6VM3ZyFH3DgY8pge1ROsO0.
{"copyright_id":"0xc5a10646246a59a95066d6c5ef628520dedc017d282445e12a25b303aa6a3221","isrc":"CZA161441390","name":"Teď Královnou Jsem Já - Live","registered_at":"2026-06-20T06:30:46Z","spotify_id":"5RfAhivv8QTFIrlrnOSUeQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a10646246a59a95066d6c5ef628520dedc017d282445e12a25b303aa6a3221. 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/5RfAhivv8QTFIrlrnOSUeQ.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/5RfAhivv8QTFIrlrnOSUeQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2043284b8929fd144656f4aa12993f9af2c1275d0a3e7f0e1f10908c69a95a. 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/1Ii4yKk3xouFUb11fWyrVl.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/1Ii4yKk3xouFUb11fWyrVl.
{"copyright_id":"0xadbe89e32646299e15f3cb93f0c349a5a39b8d113bdfb77b2dacf57739bfee42","isrc":"CZA540789820","name":"Doufám, Že Mi Sílu Bůh Dá","registered_at":"2026-06-23T12:03:31Z","spotify_id":"6kX8qbOaRCkjhuaaBtQjxk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbe89e32646299e15f3cb93f0c349a5a39b8d113bdfb77b2dacf57739bfee42. 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/6kX8qbOaRCkjhuaaBtQjxk.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/6kX8qbOaRCkjhuaaBtQjxk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1c19f08474644234e002e130e387a52f100b96fa495a692d63b1c720c40729. 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/6kjlRWQe4V7NKPgvj526fA.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/6kjlRWQe4V7NKPgvj526fA.
Dracula / Speciální edice k 20. výročí světové premiéry
Let It Go The Complete Set (From “Frozen”)
{"copyright_id":"0x1aa5675f7141e379905b830213be6a43a6b912af4b6c2be0ac8c698265be9922","isrc":"USWD11467820","name":"Najednou - Czech Version","registered_at":"2026-06-04T15:17:51Z","spotify_id":"5B0qPMGraEoPtDSc0hvZ3d","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa5675f7141e379905b830213be6a43a6b912af4b6c2be0ac8c698265be9922. 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/5B0qPMGraEoPtDSc0hvZ3d.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/5B0qPMGraEoPtDSc0hvZ3d.