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 0xeedcee5e5f515cc290161f2936d27af241c17e0a2b45918e0d92db7e89a7f581. 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/000a0873-3feb-4995-b78d-47b66f77b1e5.json and https://artists.proofprofile.net/proofs/artist/000a0873-3feb-4995-b78d-47b66f77b1e5.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 0xb67594107f00d4b60cc7b148f8f0d0c3a80f3969ce0ce96b5ca4f62277afaf8f. 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/1NwDxUJerPNsT0374mWC0y.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/1NwDxUJerPNsT0374mWC0y.
KOBIK PRESENTS DROPBOX: DIGITAL DELIVERY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9051529c8bb529ae7763db8e0877a5fdea9fbe7304f3b59087fa9610e553d698. 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/7APKyVHFe0ldQViAWTOch2.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/7APKyVHFe0ldQViAWTOch2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57fa14dab5a020bb69b164166b053192c20eb44173b2dc2fd31d99b106e602c. 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/41Pow6Rtdoy0dbL1hvlpz2.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/41Pow6Rtdoy0dbL1hvlpz2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf490aa4e69fdd4a9089788c66a3115c3a8360bde9319116de968b3e078234182. 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/7tJE36Nff7RmiFEDTT8hum.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/7tJE36Nff7RmiFEDTT8hum.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb67d895c5265354441b467cf32ea38d45c41bd862f35009d5889bac07e693e3. 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/5qAjQYlzHiI3eKatXR0Mza.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/5qAjQYlzHiI3eKatXR0Mza.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb136e01b64cb52299e94c0f019a257c0d8577ba012cf2a8366d989a674661b8b. 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/403PH94gnfZcn6AnChvxGo.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/403PH94gnfZcn6AnChvxGo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1e8acab2e1fb2de1e3f95a830341306652729c81487e476a1c7f6bf9aed2b9. 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/2Wh79KhDg8f2e6tTmvShQ7.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/2Wh79KhDg8f2e6tTmvShQ7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bab66e1e63944761241a0baad99297e417bb8d077793c5d2ab4bd3da8157a5f. 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/0K3a6ZhVOUVGjIomrvTReM.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/0K3a6ZhVOUVGjIomrvTReM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea90fcc340df2bb88970eba22d8703f98c1ede20774264b4b513639c6c3c2a5. 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/5RrMFL6CEPbBptSJGmUXdR.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/5RrMFL6CEPbBptSJGmUXdR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756219f494e36869cd1c9c8add03ec6ee6473cfd081d05565cfb996b7915c06f. 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/0AcLNwxb31nml26kxMtOZl.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/0AcLNwxb31nml26kxMtOZl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7724139628592280181786bbe41d3dfb42d94b0f6e46d90129994422a634901b. 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/5g2pchm58aQVTU9BYKZEEk.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/5g2pchm58aQVTU9BYKZEEk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd536adf75acc09414b2ac1eae82cc1d879437bce34944f1ff9fc7088797d79da. 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/5ALO7dcImcjzZglV5GP0bX.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/5ALO7dcImcjzZglV5GP0bX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67803456386c773a71bf604b94b34b521295f0014a0405ac3d3941b7881a6ae. 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/0CuTpowKjC5BG6fAsN6rjb.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/0CuTpowKjC5BG6fAsN6rjb.
{"copyright_id":"0x5410abc87b23dda9b0ea53df95dc41dcc6e88f145b056f6a90ed2cb3335e8636","isrc":"PLI366775660","name":"Jestem Tymek","registered_at":"2026-06-08T05:15:43Z","spotify_id":"0lcHB1EXshDziJwwzfNYgL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5410abc87b23dda9b0ea53df95dc41dcc6e88f145b056f6a90ed2cb3335e8636. 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/0lcHB1EXshDziJwwzfNYgL.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/0lcHB1EXshDziJwwzfNYgL.
{"copyright_id":"0x1b74662874c6e5b2544bd89c8eac4a16169303f9f7da0aa0b1b6c21f7bfeb5bc","isrc":"PLI366775630","name":"Płonie mi łeb","registered_at":"2026-06-11T16:38:57Z","spotify_id":"6mk5kKr5iRcNvMJ6BgiotG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b74662874c6e5b2544bd89c8eac4a16169303f9f7da0aa0b1b6c21f7bfeb5bc. 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/6mk5kKr5iRcNvMJ6BgiotG.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/6mk5kKr5iRcNvMJ6BgiotG.