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 0xaa789e2c79f34c09763988910a803753cd5bff2d74ece57fd63286518e875335. 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/0886c712-cf24-45b7-809c-4c496574f255.json and https://artists.proofprofile.net/proofs/artist/0886c712-cf24-45b7-809c-4c496574f255.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 0x1aed3372e00b30ae6dcb83227d24fa485e94e167dd87a63560e8e3843a875351. 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/2WUmpwiQZOG2S9y1qIOZNe.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/2WUmpwiQZOG2S9y1qIOZNe.
{"copyright_id":"0xfa52db7a68a49dddc3556814a8dd002bce2502822a8342752fc851555b624b6b","isrc":"JPZ921108373","name":"Flood of a Life - extend live mix","registered_at":"2026-06-29T10:59:34Z","spotify_id":"73PyNPJE3F4c5oTXBzSiPd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa52db7a68a49dddc3556814a8dd002bce2502822a8342752fc851555b624b6b. 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/73PyNPJE3F4c5oTXBzSiPd.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/73PyNPJE3F4c5oTXBzSiPd.
{"copyright_id":"0x60bc3c68092c8b68e93f2507c66a67d40c5ed098ee49f2ede43056d2b84dc4de","isrc":"JPZ921108376","name":"Why Don't You Come Down","registered_at":"2026-06-29T11:02:29Z","spotify_id":"5CxIutskgFh4K8S4BOuJDH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bc3c68092c8b68e93f2507c66a67d40c5ed098ee49f2ede43056d2b84dc4de. 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/5CxIutskgFh4K8S4BOuJDH.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/5CxIutskgFh4K8S4BOuJDH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aed3372e00b30ae6dcb83227d24fa485e94e167dd87a63560e8e3843a875351. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0ULZ228luMRf6UXd0FLePm.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/0ULZ228luMRf6UXd0FLePm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bc3c68092c8b68e93f2507c66a67d40c5ed098ee49f2ede43056d2b84dc4de. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3Le12k9QAPkMhZ39A6S4vT.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/3Le12k9QAPkMhZ39A6S4vT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d11a23c8378587efda7ce92012f98dffe4d9197e3593465327b46015ded6fe4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Rj8UY2uh6YgU6SAGcquTe.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/4Rj8UY2uh6YgU6SAGcquTe.
Someone Is Always Moving On the Surface - FreQuency Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d11a23c8378587efda7ce92012f98dffe4d9197e3593465327b46015ded6fe4. 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/2iw1AErxC8qrvAejEIoo7K.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/2iw1AErxC8qrvAejEIoo7K.
{"copyright_id":"0x2abee5f8f507e423f99104092c11eb13290e2ef098aa17a94de237bdb8facf32","isrc":"JPZ921214606","name":"Silent Line (OP-Intensify)","registered_at":"2026-06-29T10:55:21Z","spotify_id":"0GIM0KiAM7NFLtoRA8AnUA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abee5f8f507e423f99104092c11eb13290e2ef098aa17a94de237bdb8facf32. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0GIM0KiAM7NFLtoRA8AnUA.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/0GIM0KiAM7NFLtoRA8AnUA.
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