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 0xebfd5fe911f8bd234df4d27ccb16e44a34493cf26fbe5a14496ffe9125dee6be. 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/9840f03c-0cf3-440d-a264-a26ff827930d.json and https://artists.proofprofile.net/proofs/artist/9840f03c-0cf3-440d-a264-a26ff827930d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O'Flynn - Mesablanca (O'Flynn & Ekhe Dub)
{"copyright_id":"0xf370855d32b6ff092b9025f3c4fca090be1d3bbf51ad7b1a32eff4d05e4cb0db","isrc":"GBCFB2200578","name":"You Need Me","registered_at":"2026-06-29T12:33:40Z","spotify_id":"6HGi2zLJfizuG8yQDZLlhG","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 0xf370855d32b6ff092b9025f3c4fca090be1d3bbf51ad7b1a32eff4d05e4cb0db. 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/6HGi2zLJfizuG8yQDZLlhG.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/6HGi2zLJfizuG8yQDZLlhG.
{"copyright_id":"0x28a90eb2d41c6eda43feb8c952e6a46095e686fcbc416a24439fb76dca6cfe70","isrc":"GBUM72304121","name":"No Reason - O'Flynn Remix","registered_at":"2026-06-18T09:44:34Z","spotify_id":"0Xm4UZw6BDSLZtG95PPXxC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a90eb2d41c6eda43feb8c952e6a46095e686fcbc416a24439fb76dca6cfe70. 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/0Xm4UZw6BDSLZtG95PPXxC.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/0Xm4UZw6BDSLZtG95PPXxC.
{"copyright_id":"0x28a90eb2d41c6eda43feb8c952e6a46095e686fcbc416a24439fb76dca6cfe70","isrc":"GBUM72304121","name":"No Reason - O'Flynn Remix","registered_at":"2026-06-18T09:44:34Z","spotify_id":"2LAkYom1gp2DYGO4JVOB9h","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a90eb2d41c6eda43feb8c952e6a46095e686fcbc416a24439fb76dca6cfe70. 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/2LAkYom1gp2DYGO4JVOB9h.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/2LAkYom1gp2DYGO4JVOB9h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7f7fdae38759f60f54eee5a2339caa790b03af7891b89927a22d7d64ecfd27. 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/4w6LanzO4Vb0W4vo36l8wp.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/4w6LanzO4Vb0W4vo36l8wp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d4a26fd08bac6bd06d976f0b079b1838732b34486c2dbad4a845d1284d9bc0. 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/37uU8o0cTjkpQO5iLRtpin.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/37uU8o0cTjkpQO5iLRtpin.
{"copyright_id":"0xb2a9f9c686000ea5e91531a047765d3bf02cdf67b432f5bb7fd90bf34d915f00","isrc":"USA2P2136549","name":"Lens - O'Flynn Remix","registered_at":"2026-06-17T20:26:53Z","spotify_id":"1ZciwBPdad6thdep7X8zJU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a9f9c686000ea5e91531a047765d3bf02cdf67b432f5bb7fd90bf34d915f00. 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/1ZciwBPdad6thdep7X8zJU.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/1ZciwBPdad6thdep7X8zJU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a9f9c686000ea5e91531a047765d3bf02cdf67b432f5bb7fd90bf34d915f00. 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/2PtGu08M54jCQmxmeA3DJZ.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/2PtGu08M54jCQmxmeA3DJZ.