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 0x06ca1af4733adeac8134d1eeaabb23856aa39642f2c2819b9ab09c9fcf806ae2. 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/cb0da644-c1e6-493e-9de5-51de8e90a328.json and https://artists.proofprofile.net/proofs/artist/cb0da644-c1e6-493e-9de5-51de8e90a328.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0x38ff4a1132d9409938cce6ca3d391de0f334132ad136c699e351f6f686db0415. 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/2sKfGmkVVxPJHez5pnHwOb.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/2sKfGmkVVxPJHez5pnHwOb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2496c6eac49d7b351c22af56d5666d89ca3c8dda8de0d3c5f875630a6a045485. 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/3fNsgN1SdXPKBq92WEGLkO.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/3fNsgN1SdXPKBq92WEGLkO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98efa25598893d58af3f2ba72aa4ff98cd9ebc96b54cf049c28ca92cb71ff01. 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/2uLbkWk37W7RTdLYrrWbaF.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/2uLbkWk37W7RTdLYrrWbaF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfadab93000a8f48b54ccd90bb6c5d8be66bfe932d489c943870e6c06495b643. 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/57mUlLHY3BVq7rQtANvfgo.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/57mUlLHY3BVq7rQtANvfgo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1d73addf9216ced6b4f34359829963b2150ba378bbffd461b273d1361b8e9b. 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/6TecGmmLSQthR81bgZ1JBV.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/6TecGmmLSQthR81bgZ1JBV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e8bb86a24f65b3be9e6adf98593ee09f1191bb3cff0dc15881d6e8144fd1e2. 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/7gsRqOPJZJlGEAwqDBw3ro.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/7gsRqOPJZJlGEAwqDBw3ro.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95801530e26fb8b74071ccc54fbbe150835c0a5112b1a1476f6e127791f270af. 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/2oDLCv0sy4Sx5jj1bIWnDP.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/2oDLCv0sy4Sx5jj1bIWnDP.
{"copyright_id":"0xb284c24affeeaae28df5a5d8cdc1582ede92eeaada90093a9c5d0ff3b7b01f94","isrc":"FRX202221645","name":"7 Păcate","registered_at":"2026-06-22T10:14:53Z","spotify_id":"2uKe1UqZI6bhwMvqUDIujd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb284c24affeeaae28df5a5d8cdc1582ede92eeaada90093a9c5d0ff3b7b01f94. 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/2uKe1UqZI6bhwMvqUDIujd.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/2uKe1UqZI6bhwMvqUDIujd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac59480a579b2d1eab0d1f2f9c3845b4ce41ad9bbbd09f6184c052b1603ba29. 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/4gNCjdfKoluQoFpqQYLG3X.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/4gNCjdfKoluQoFpqQYLG3X.