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 0x5e269f758068a81222cd6ffb418f60918971d9a7dd03849e12e00d453b794796. 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/08a656bc-240c-42be-a714-9dd8ffe9c323.json and https://artists.proofprofile.net/proofs/artist/08a656bc-240c-42be-a714-9dd8ffe9c323.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 0x141399b09819a1456812e10ab7ac4751646da5ea444b33af6b46a6dd492c75ea. 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/3QiacUdkUT5sa38UWpDyE8.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/3QiacUdkUT5sa38UWpDyE8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927244f05ad46fe14aff281b623b35f1ae01ba1e910309f49b11fdd8ddb90ff4. 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/3nwg542Y536B38HJq7siGV.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/3nwg542Y536B38HJq7siGV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f67dda0672edc046360180559a4c828e8865e86c70511f3a953f0685af85ea. 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/2FCb5NatdmycKryZXG6MLH.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/2FCb5NatdmycKryZXG6MLH.
{"copyright_id":"0x798877fdd2a04c01ac73f32a04ecced6314ae6a583ed3975d36772dbaf7279a0","isrc":"ESA122461834","name":"A Serendipitous Encounter","registered_at":"2026-06-24T15:33:07Z","spotify_id":"4kBCxeAqNHINMu2EPrBSqB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798877fdd2a04c01ac73f32a04ecced6314ae6a583ed3975d36772dbaf7279a0. 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/4kBCxeAqNHINMu2EPrBSqB.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/4kBCxeAqNHINMu2EPrBSqB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154d4bf8499b82f7afb497a165f9c024db55c547c5be5b4643a71b101f061c4e. 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/40srbrMcN4wAQmUzatgA3B.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/40srbrMcN4wAQmUzatgA3B.
{"copyright_id":"0x5fef0b03ee8604a7d84b722939bb0a364313cbf5be74fcd48ca4681f79ce0fba","isrc":"ESA122461836","name":"The Path We Chose","registered_at":"2026-06-24T15:33:51Z","spotify_id":"4iPlAV2sCkwcyeFpteKV34","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fef0b03ee8604a7d84b722939bb0a364313cbf5be74fcd48ca4681f79ce0fba. 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/4iPlAV2sCkwcyeFpteKV34.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/4iPlAV2sCkwcyeFpteKV34.
Fretboard Fantasies: Peaceful Guitar Music
{"copyright_id":"0x796d2d74ec916faf86514aaeebe1ac2a045c75c6082b84cdd2a67dc31af9201b","isrc":"DE1JN2463619","name":"Serene Strings","registered_at":"2026-06-23T14:36:59Z","spotify_id":"2hwSZEiZ6kjwesbQPQUVGA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796d2d74ec916faf86514aaeebe1ac2a045c75c6082b84cdd2a67dc31af9201b. 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/2hwSZEiZ6kjwesbQPQUVGA.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/2hwSZEiZ6kjwesbQPQUVGA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a63c53f507cea4808bbb62481dc4eaf9b20720091763654fe6e65f8a4bc92ec. 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/3UAl4m5GB73pvoBShNRj40.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/3UAl4m5GB73pvoBShNRj40.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8f0c6e6e5e72b615189af133ed96c12706a3c9a586e6f8c6205e1ab89b7b3c. 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/5CstNi3DYT2tLQDuo5i4g5.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/5CstNi3DYT2tLQDuo5i4g5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787d01f8282af252e6d476de2710845253f35be91e968e6e237db05015473010. 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/1ihbkFU1olpO2lSSgxPw01.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/1ihbkFU1olpO2lSSgxPw01.
{"copyright_id":"0xcdbd7276e50000cd4982b3a5d9aaecb8085e1cfe7811afeccef79f8df6f9217e","isrc":"ESA011838865","name":"You're Here","registered_at":"2026-06-27T06:30:16Z","spotify_id":"72meUkCDhOfZtdbmRQNRIU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbd7276e50000cd4982b3a5d9aaecb8085e1cfe7811afeccef79f8df6f9217e. 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/72meUkCDhOfZtdbmRQNRIU.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/72meUkCDhOfZtdbmRQNRIU.
Peaceful Embers – Romantic Acoustic Calm