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 0x8efb8741945901404dd00b59678692410b96bcdc42792272f0208e68de65514f. 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/1d735a6f-80b2-4aaa-9de1-61a33772b3cb.json and https://artists.proofprofile.net/proofs/artist/1d735a6f-80b2-4aaa-9de1-61a33772b3cb.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 0xcbce2d9aed0329b0faf884e7ccc3708a03b2b8fbdf1d4b66f592138f0c7a798e. 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/0hgwNIts0S52GwIw6lVVqc.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/0hgwNIts0S52GwIw6lVVqc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ea90e149fe48608e0298858e26cc1a33e266f85d47587fb0284b48ca8850a8. 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/7wGUaYk1xbyHSi8O2l7enX.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/7wGUaYk1xbyHSi8O2l7enX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e57b1ac3f3d241abae858e12c999d58322477f49f8f52410022e9f37a328a6d. 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/5AS8lCfYuO70DmrrbvgRzz.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/5AS8lCfYuO70DmrrbvgRzz.
{"copyright_id":"0x586e4d7ad7c37ec228d0d9bcbaffc145fe9f349c9cfcbc52ee17200b7cbc3d79","isrc":"QZNWQ2274198","name":"KTMSKP - Radio Edit","registered_at":"2026-06-18T07:09:09Z","spotify_id":"3oH6MRT0tQoMSuSMhiWlpW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586e4d7ad7c37ec228d0d9bcbaffc145fe9f349c9cfcbc52ee17200b7cbc3d79. 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/3oH6MRT0tQoMSuSMhiWlpW.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/3oH6MRT0tQoMSuSMhiWlpW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42778730163c8d96201420fa6d019f800fcf0a00604acc73342d3a3bc9699472. 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/59AntCL1L7HGptzXRLkA2b.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/59AntCL1L7HGptzXRLkA2b.
{"copyright_id":"0xe55253509d17b5070446d6a99aea44c482db1e3d2fa4e2881aa89183ae07daed","isrc":"QZK6F2364849","name":"FUCK THAT SHIT","registered_at":"2026-06-10T06:50:28Z","spotify_id":"4YbfmY3drDRHOZVwqreJyk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55253509d17b5070446d6a99aea44c482db1e3d2fa4e2881aa89183ae07daed. 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/4YbfmY3drDRHOZVwqreJyk.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/4YbfmY3drDRHOZVwqreJyk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec036b67cbe7d8ff0021c5e914ec6b2de206ea8673525c540a3ee5f3030355d. 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/6TAMWUyDZIS5jEiU4EOXfg.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/6TAMWUyDZIS5jEiU4EOXfg.
{"copyright_id":"0x8c3d321e7ca97b5101d3bc320e1186ca2d2e25bec7f6a0e34b7de8e23f7f659c","isrc":"QZZ7R2426395","name":"KARANGANHADA - Radio Edit","registered_at":"2026-06-05T07:13:34Z","spotify_id":"7GdAweuf5K61uEfh21xJwg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3d321e7ca97b5101d3bc320e1186ca2d2e25bec7f6a0e34b7de8e23f7f659c. 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/7GdAweuf5K61uEfh21xJwg.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/7GdAweuf5K61uEfh21xJwg.