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 0x23db371b33bcc803961cc1528e8e38d0a3c6388d957acff6effc0314d20a5da6. 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/bd739cc1-b516-45ce-bf6d-f26f813f34a8.json and https://artists.proofprofile.net/proofs/artist/bd739cc1-b516-45ce-bf6d-f26f813f34a8.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 0x3af774c1add57ba42f6a93f10f712d59e26487383c2ece30847ffa0e134c79de. 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/5GkvrnHYjCZhpuevV3KaU1.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/5GkvrnHYjCZhpuevV3KaU1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db403578f1f7a14e8df0f81752d78b896025ed57e1340667fbf6d58f476150b. 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/6d9DMGeaiZ8NxZ7Ba3sKup.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/6d9DMGeaiZ8NxZ7Ba3sKup.
{"copyright_id":"0xbde1639b66234c24def3dab7d172365055f990f14abf80bfa9ee714849cc5c3b","isrc":"PLC630800003","name":"Pochwała naiwności","registered_at":"2026-06-19T18:16:17Z","spotify_id":"273ZQs4EKWdTsJUUf3eWZF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde1639b66234c24def3dab7d172365055f990f14abf80bfa9ee714849cc5c3b. 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/273ZQs4EKWdTsJUUf3eWZF.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/273ZQs4EKWdTsJUUf3eWZF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd858aeeeb65d5c7890424dc775601e73904074a96b989efbb5874d4be2245d76. 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/3ku5ApaP2fgWQN3Fdi5aV0.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/3ku5ApaP2fgWQN3Fdi5aV0.
{"copyright_id":"0xcf1d0c645f61da2a6208793a17abcc36d8a2833601c777b5a3d48cf36ce0f3ac","isrc":"PLC630800005","name":"Ile we mnie jest","registered_at":"2026-06-24T22:55:05Z","spotify_id":"58uRw6z4F3LAxHEwnTLjhF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1d0c645f61da2a6208793a17abcc36d8a2833601c777b5a3d48cf36ce0f3ac. 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/58uRw6z4F3LAxHEwnTLjhF.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/58uRw6z4F3LAxHEwnTLjhF.
{"copyright_id":"0x82b21f2889706bf70df6e2de63f2faaabd6c85b31956eb6c8c308983f75ba428","isrc":"PLC630800006","name":"Siła ognia - Juniorbwoy Rmx","registered_at":"2026-06-08T14:57:18Z","spotify_id":"3jfJkQ0piv4GRpG7oJm5fF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b21f2889706bf70df6e2de63f2faaabd6c85b31956eb6c8c308983f75ba428. 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/3jfJkQ0piv4GRpG7oJm5fF.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/3jfJkQ0piv4GRpG7oJm5fF.
Bezsenność w Warszawie Akustycznie - Live
Bezsenność w warszawie akustycznie - Live
Moje serce 2K18 (Up & Down & Mikołaj Trybulec Remix)
Moje serce 2K18 - Up & Down & Mikołaj Trybulec Remix
Kurtyny – projekt Ogrody Śródmieście (Borys Sawaszkiewicz Remix)
Kurtyny – projekt Ogrody Śródmieście - Borys Sawaszkiewicz Remix
{"copyright_id":"0x6f389ec3b9500ae8c870bcec5f3c25a73c611fbd44ea0ad08a63cad973d9db6e","isrc":"PLC071001036","name":"Mój głos - Mothashipp Remix","registered_at":"2026-06-20T05:34:29Z","spotify_id":"38eTsAEFtV6UEQCkQPGHD2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f389ec3b9500ae8c870bcec5f3c25a73c611fbd44ea0ad08a63cad973d9db6e. 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/38eTsAEFtV6UEQCkQPGHD2.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/38eTsAEFtV6UEQCkQPGHD2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495846b966741221c6069c154a4df63de6fa461941155bbaf25637784ed07d2b. 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/4ZlqDdcH3AlG03z85agc0h.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/4ZlqDdcH3AlG03z85agc0h.
{"copyright_id":"0x0a551b2485cf853289cb677d974d3167225f6e7e6afd89bbb0cb6d6e0c6b63ec","isrc":"PLC281200027","name":"Tyle słońca w całym mieście","registered_at":"2026-06-27T15:57:42Z","spotify_id":"2JgOcFeXvNoP83kpWw15LQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a551b2485cf853289cb677d974d3167225f6e7e6afd89bbb0cb6d6e0c6b63ec. 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/2JgOcFeXvNoP83kpWw15LQ.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/2JgOcFeXvNoP83kpWw15LQ.