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 0x5459a1179ea6cff4da5059c35a1c763908c890a98a81c3b3da3c6191406c1548. 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/6323b65e-b7f7-4fa1-8c75-3283f25ad708.json and https://artists.proofprofile.net/proofs/artist/6323b65e-b7f7-4fa1-8c75-3283f25ad708.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 0x44c1a4b1e09fb886d21cc1298dad708240ae6b19a9cc0bdc59bd88b9129f66b5. 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/3zjMj084RsVtCA5xfifwuy.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/3zjMj084RsVtCA5xfifwuy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee1fb4500788dcf99ddefce70f4e34896731bcf09c3e39a06663891459392bd. 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/6rlodMmWjSqyuM4wmisLex.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/6rlodMmWjSqyuM4wmisLex.
{"copyright_id":"0x363a2e132c8b147358cb04ccf5bcd268cc89fbd39b5f640f1ba5e6c4bc954adc","isrc":"ARF862200002","name":"Ya Te Olvidé","registered_at":"2026-06-20T06:14:58Z","spotify_id":"4sXOhjDmh4e7NJIAVlFzi6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363a2e132c8b147358cb04ccf5bcd268cc89fbd39b5f640f1ba5e6c4bc954adc. 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/4sXOhjDmh4e7NJIAVlFzi6.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/4sXOhjDmh4e7NJIAVlFzi6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe328727874dfd92743fce907807b74960579b57da6e369a87cdd8f8e19ec9190. 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/4g2l63dU3orivaASZ2zr9j.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/4g2l63dU3orivaASZ2zr9j.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5553bd7676f7f72d181c3f9fd3b52ef29eed5a77813e49c155220de49f0b124. 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/2vI1t4h5nKZHtjizi1lO0e.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/2vI1t4h5nKZHtjizi1lO0e.
{"copyright_id":"0x0488f21a8356a133b6db3e416cc01b07d8c0d9a5b6ebcc0e1127ff0e775d34b6","isrc":"QZNJY2006009","name":"Tu Boca Es Mi Boca","registered_at":"2026-06-08T10:49:38Z","spotify_id":"1HVvVIWC9j1Lnc8GVT3KTR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0488f21a8356a133b6db3e416cc01b07d8c0d9a5b6ebcc0e1127ff0e775d34b6. 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/1HVvVIWC9j1Lnc8GVT3KTR.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/1HVvVIWC9j1Lnc8GVT3KTR.
{"copyright_id":"0xacc65127b832ec6c4b327f3df7ee87ecf40a56c74ecadbeb5413ac248202a0cb","isrc":"QZNWU2040532","name":"Par de Babys","registered_at":"2026-06-09T17:31:08Z","spotify_id":"7hfMzlCdE1geXHy6LFs7UV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc65127b832ec6c4b327f3df7ee87ecf40a56c74ecadbeb5413ac248202a0cb. 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/7hfMzlCdE1geXHy6LFs7UV.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/7hfMzlCdE1geXHy6LFs7UV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0316753373629cb1ee45cc2e4dc07f4d9f892cf9717fc2cd488b392fa9c9fc. 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/3Hpm8kORRh4r2dRfMGF0h3.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/3Hpm8kORRh4r2dRfMGF0h3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e47e443c565f88af3d3d901b6584b77c0b43c1081ffa66cde8d121176ecd51. 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/4Io9KKxsRyiRpF1AV4x50C.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/4Io9KKxsRyiRpF1AV4x50C.