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 0x02889d3caec9f58cc06a7027955ff6a8b678fadae6c24ec60990f260cccc7872. 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/f6225139-7041-4fac-9427-490a47c23896.json and https://artists.proofprofile.net/proofs/artist/f6225139-7041-4fac-9427-490a47c23896.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 0x88aab442b8b148edc4b43aacd8b5b9cdf5bf89f863871726d639473961ab2b32. 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/3WEOGkw2eh3hSHDkpz2d9S.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/3WEOGkw2eh3hSHDkpz2d9S.
{"copyright_id":"0x2f4889a51c406fd0ac4275b23159abc6a1857fae1f40b409cdc29c6b86a0c82e","isrc":"MYTP11300162","name":"Muara Hati","registered_at":"2026-06-26T19:19:06Z","spotify_id":"5jUOz2sbzuxjigJzgQODHm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4889a51c406fd0ac4275b23159abc6a1857fae1f40b409cdc29c6b86a0c82e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5jUOz2sbzuxjigJzgQODHm.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/5jUOz2sbzuxjigJzgQODHm.
{"copyright_id":"0xeb2d307cf3a5b30bec19f8469a8bab2a3f9d467b5f9e719d4fdb32479ac90db6","isrc":"MYTP11300155","name":"Bahagiamu Deritaku","registered_at":"2026-06-24T10:06:08Z","spotify_id":"0aXtyeD7nvV7lWMdHm54yb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2d307cf3a5b30bec19f8469a8bab2a3f9d467b5f9e719d4fdb32479ac90db6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0aXtyeD7nvV7lWMdHm54yb.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/0aXtyeD7nvV7lWMdHm54yb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d04dc485c60aba3af6e9723d30fa4d5363ea804f7a9c52622bb6a563e66de8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2f3F3b5qGuanRP5N1V6p6Q.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/2f3F3b5qGuanRP5N1V6p6Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d04dc485c60aba3af6e9723d30fa4d5363ea804f7a9c52622bb6a563e66de8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3FfMSeLeM0xPu1q6SaLSX4.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/3FfMSeLeM0xPu1q6SaLSX4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d04dc485c60aba3af6e9723d30fa4d5363ea804f7a9c52622bb6a563e66de8. 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/7qsvPYJWh7roacFvaltyuh.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/7qsvPYJWh7roacFvaltyuh.
{"copyright_id":"0xeb2d307cf3a5b30bec19f8469a8bab2a3f9d467b5f9e719d4fdb32479ac90db6","isrc":"MYTP11300155","name":"Bahagiamu Deritaku","registered_at":"2026-06-24T10:06:08Z","spotify_id":"5SPFBhC1b9pcW7bNx9k16H","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2d307cf3a5b30bec19f8469a8bab2a3f9d467b5f9e719d4fdb32479ac90db6. 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/5SPFBhC1b9pcW7bNx9k16H.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/5SPFBhC1b9pcW7bNx9k16H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf204a2f26d6fe63f2788d9f9b3272e5630d290468c418cf285bf9b45fa6b760. 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/01dEc4htNSMFt5tG4maK7Q.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/01dEc4htNSMFt5tG4maK7Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67ae60eee879058ee0e6375c40309eeefc73cf80eb34db63a44eb070012359d. 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/2bwlq02pbbyJuEUuG3dwbV.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/2bwlq02pbbyJuEUuG3dwbV.