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 0x83d919006ae0ebaf4a1b2c98e2192d59fe97a86a4fe5cf2a413a559e64997ffa. 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/1dcf7a99-2562-487b-9a37-b8c48d6d1771.json and https://artists.proofprofile.net/proofs/artist/1dcf7a99-2562-487b-9a37-b8c48d6d1771.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Halucinace ze třetího patra (Deluxe Edition)
Motivační píseň pro chlapce, kterého omrzel život
Rozviklaný vozík plný mrtvých krys (Žijeme v Americe)
Motivacni Pisen Pro Chlapce, Ktereho Omrzel Zivot
Rozviklany Vozik Plny Mrtvych Krys (Zijeme V Americe)
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 0x0a463f800fb75ece994d61e6fd5fd0c4e2944e34573b86d5b307a1f216690001. 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/6w0pCzkLutxkCok247yZDd.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/6w0pCzkLutxkCok247yZDd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12104693e1f4085a683f1cbba182975255045f10c155248dc98370e7f9059ad. 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/4UbHJZfgiA6noKRGaEtON9.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/4UbHJZfgiA6noKRGaEtON9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf7d29e889788323f41258ce042da5b3fabf9e04afa81413f471ec16e171151. 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/4uFaGNP4ei0VK7VC7BVbZ2.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/4uFaGNP4ei0VK7VC7BVbZ2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5c7da7e36da073ba4a9a77fde3b38cb71cd4f686ce4e7c39a95cb1ce433b9c. 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/61ojXBmSjOJ60fIN4ei8p8.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/61ojXBmSjOJ60fIN4ei8p8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5c7da7e36da073ba4a9a77fde3b38cb71cd4f686ce4e7c39a95cb1ce433b9c. 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/06SWCDVqmusZii3UH9L816.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/06SWCDVqmusZii3UH9L816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6056598d982e1776d48040aec58cfd7762b9944adbd04d8222854e8b1cb025d7. 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/354R1SY9dr509ZjQt0pQNh.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/354R1SY9dr509ZjQt0pQNh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743654939391f05fd341b6a9226d8f8c2953aec2d1bb8b37ec0a100becd68220. 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/5Ddslzp4cIzrL3eofK6fFu.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/5Ddslzp4cIzrL3eofK6fFu.
{"copyright_id":"0x4bc524f9583c5cf00ecabcdaa341fc9e25d03f0c2e1625658de0d82cdeb7f90c","isrc":"USJ3V1329283","name":"Orion & James Cole","registered_at":"2026-06-22T07:06:25Z","spotify_id":"22c4uKVJtIZiBTFUpVbHFV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc524f9583c5cf00ecabcdaa341fc9e25d03f0c2e1625658de0d82cdeb7f90c. 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/22c4uKVJtIZiBTFUpVbHFV.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/22c4uKVJtIZiBTFUpVbHFV.
{"copyright_id":"0x04eea1295fca618e7d4f908a7c2f47f54cccafea9d6e94c75e2850afa456fc18","isrc":"USJ3V1329284","name":"Hvězdná Star","registered_at":"2026-06-19T15:52:46Z","spotify_id":"2i4BXuUSJMRMe8JjReyFbY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04eea1295fca618e7d4f908a7c2f47f54cccafea9d6e94c75e2850afa456fc18. 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/2i4BXuUSJMRMe8JjReyFbY.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/2i4BXuUSJMRMe8JjReyFbY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef6d2e7916a009a76659c02168fb707e968a90412e3e3cd6d57df2b7388ce09. 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/6JeoYBA6BpUL4M1afYg1BO.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/6JeoYBA6BpUL4M1afYg1BO.
{"copyright_id":"0x6bddeeac61ea541a0a3442f6a70df210e7ea61f2d6bdec0efd7c66db27330b3f","isrc":"USJ3V1329286","name":"Švihák Lázeňský","registered_at":"2026-06-10T20:36:39Z","spotify_id":"1QOn58x9yWs9eqbM7A7bBH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bddeeac61ea541a0a3442f6a70df210e7ea61f2d6bdec0efd7c66db27330b3f. 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/1QOn58x9yWs9eqbM7A7bBH.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/1QOn58x9yWs9eqbM7A7bBH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa083667927815390bbd8a9ddd26d59b66cb0d83896982fe2e560c388953dad53. 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/6rncaEnXogJD2VpyCxWp81.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/6rncaEnXogJD2VpyCxWp81.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48896d0e096a72c230674c620f53dd98c97329ed395462082010f79663e60948. 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/3TiXXe7uwaGcTdZsCLxBbh.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/3TiXXe7uwaGcTdZsCLxBbh.
{"copyright_id":"0x57870d77a04195ee0e3f7d8f1b771478aa6f7af8462fae00f7b9a4349b7b6bae","isrc":"USJ3V1329289","name":"Už Nechci Být Sám","registered_at":"2026-06-24T19:32:02Z","spotify_id":"3SosIBpuOlFqdO0XzKfrNF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57870d77a04195ee0e3f7d8f1b771478aa6f7af8462fae00f7b9a4349b7b6bae. 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/3SosIBpuOlFqdO0XzKfrNF.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/3SosIBpuOlFqdO0XzKfrNF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0689358efda287ae06d51f2200776897eb8b2b44e06ea4cf6069037458a5cf5c. 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/1GrYv7IgMTfhro4QcWJsl9.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/1GrYv7IgMTfhro4QcWJsl9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3946e4613e0de8899f8a852f42a56f50df44859572a630ac7bb228a4055d285d. 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/3QPHuwWL4LXkA4N6w22mxS.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/3QPHuwWL4LXkA4N6w22mxS.
{"copyright_id":"0xb4cb6f88318864a8f4a8cce98b22818e63e600a491c50f7e8f1f09dbddcad1c1","isrc":"USJ3V1329292","name":"Země Vzdálená","registered_at":"2026-06-05T13:39:10Z","spotify_id":"2Sp9fL3xS23wuY5LYJLCeR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cb6f88318864a8f4a8cce98b22818e63e600a491c50f7e8f1f09dbddcad1c1. 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/2Sp9fL3xS23wuY5LYJLCeR.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/2Sp9fL3xS23wuY5LYJLCeR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb524b5d5cf554646642258658dbfb5f58f9f0f73ca8f9968be1b360e1d327030. 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/5mU60TgmNA041iyinO0KxI.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/5mU60TgmNA041iyinO0KxI.