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 0xba5e0200241785a7d4c198ea195aaa9ac01144de100dc0c03aa26d79a5eac679. 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/d246a0dd-4198-40b0-b8f3-916a958784c0.json and https://artists.proofprofile.net/proofs/artist/d246a0dd-4198-40b0-b8f3-916a958784c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x26b3c765d5b741ca486ec6a0e30ef4e48a62e31e4ed2fd88f4158ff1bdfbf23c","isrc":"SE5Q52000712","name":"Factory Rims","registered_at":"2026-06-29T09:28:48Z","spotify_id":"36djBvQlhlwcxao4pboz7S","type":"track"}
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 0x26b3c765d5b741ca486ec6a0e30ef4e48a62e31e4ed2fd88f4158ff1bdfbf23c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/36djBvQlhlwcxao4pboz7S.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/36djBvQlhlwcxao4pboz7S.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a0b20fe074701aa2d1bc235bf8755c6a8c31c48e3eb4bbb8536a3282323d5d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2qrx6ORzJBYbaFsgOMsMT8.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/2qrx6ORzJBYbaFsgOMsMT8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f54998fa7dc8cd0c8d8735eb590bf81f6650c2ef81f5628a21f2eb6f7b3a92. 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/2EYcUb51RRgzri0TczIwbC.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/2EYcUb51RRgzri0TczIwbC.
{"copyright_id":"0x1ea2faeb5fb9ae1e455512d7934346534fbfac7e37291ef69ed3e39c3da2378f","isrc":"SE5Q52102315","name":"Ga$ Money (Orchestral Version)","registered_at":"2026-06-19T05:28:40Z","spotify_id":"119V2Nktfhk9hTmFOEkZjQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea2faeb5fb9ae1e455512d7934346534fbfac7e37291ef69ed3e39c3da2378f. 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/119V2Nktfhk9hTmFOEkZjQ.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/119V2Nktfhk9hTmFOEkZjQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6419449d5d3d6148ce48a9c14f4fae243149d40479d0c55c09b6f486791c00fd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7uph1kfyN5krjQOCqZUgRb.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/7uph1kfyN5krjQOCqZUgRb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95dbe38b3518b51faf6916223dab4af3993a5409d18ad5a17081ee7d1326682. 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/7Ll6NO1nTdvH1psIjL8ho5.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/7Ll6NO1nTdvH1psIjL8ho5.
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