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 0xf22f7a67aa405bd5fbaa06183db293fd7104c9332ab034b009190d8f88547846. 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/f9cb16a8-c106-465d-84a4-84edd59dbbfd.json and https://artists.proofprofile.net/proofs/artist/f9cb16a8-c106-465d-84a4-84edd59dbbfd.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 0x50886ce55bc37938c0bfb17f560d24adbf2eb97bdb82ffa6e5b8935fc8a572b5. 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/7BNxue1GyVQX4ff7RwBTSr.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/7BNxue1GyVQX4ff7RwBTSr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebf4132a12055fd1cd25de9bc784c07fe98c0643b16d2ee4f46d28b96affbf8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0YFQ2syQ37ZXHtSJCdM2nx.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/0YFQ2syQ37ZXHtSJCdM2nx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31728c09630584e2a7d6d244625606867871123507d80b57222181255b312b75. 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/1aTrE7BEF4xYDpo9uC43Mn.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/1aTrE7BEF4xYDpo9uC43Mn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e790753c03f972f850942d15ee482710acb82dbd002795912658d27b01d4cb. 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/6caMkeReZb159BM2xhTrgn.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/6caMkeReZb159BM2xhTrgn.
Crazy What Love Can Do (with Becky Hill) - Grafix Remix
{"copyright_id":"0xabcdbe691c37926d4e3cd2ef828a6dc90cb8234bd32fda20bf5c14a4871e5bce","isrc":"UKWLG2200024","name":"Crazy What Love Can Do (with Becky Hill) - Grafix Remix","registered_at":"2026-06-21T22:19:01Z","spotify_id":"6lDm5RIObvSePXiNBOPVHp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcdbe691c37926d4e3cd2ef828a6dc90cb8234bd32fda20bf5c14a4871e5bce. 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/6lDm5RIObvSePXiNBOPVHp.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/6lDm5RIObvSePXiNBOPVHp.
Anasthasia - Blame Remix / Camargue - Fred V & Grafix Remix
{"copyright_id":"0x7eb3f8c71fa958836ef72ea16cd81bbf2210f8438cf095a2982b32bfb844608b","isrc":"NLCK41012412","name":"Camargue - Fred V & Grafix Remix","registered_at":"2026-06-21T23:38:52Z","spotify_id":"53K0srahDaUUx1mcEZH8k2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb3f8c71fa958836ef72ea16cd81bbf2210f8438cf095a2982b32bfb844608b. 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/53K0srahDaUUx1mcEZH8k2.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/53K0srahDaUUx1mcEZH8k2.
The Sound of Drum & Bass 2021 (Viper Presents)
{"copyright_id":"0x2f23b8d8513c6b930f27d9bb1b4ce9707ffc2014abada07eac97691452d7e5a5","isrc":"CA6D22100117","name":"Worlds Collide (Grafix Remix)","registered_at":"2026-06-08T11:18:30Z","spotify_id":"0vlZws47o8brEXz7slLuwL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f23b8d8513c6b930f27d9bb1b4ce9707ffc2014abada07eac97691452d7e5a5. 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/0vlZws47o8brEXz7slLuwL.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/0vlZws47o8brEXz7slLuwL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31728c09630584e2a7d6d244625606867871123507d80b57222181255b312b75. 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/3GeLRA6VDZV8nXZTWWVzUU.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/3GeLRA6VDZV8nXZTWWVzUU.
Don't Look Down (feat. Natalie Shay) - Grafix Remix
{"copyright_id":"0xaa91a5c14d1bbbf3b069fbfaf09ad10d4ca4dc2442f4f62ff58a1d78a332347a","isrc":"GBEWA2206290","name":"Don't Look Down (feat. Natalie Shay) - Grafix Remix","registered_at":"2026-06-10T00:51:40Z","spotify_id":"6yI3YVZWjwBz5XTrC0dAoZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa91a5c14d1bbbf3b069fbfaf09ad10d4ca4dc2442f4f62ff58a1d78a332347a. 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/6yI3YVZWjwBz5XTrC0dAoZ.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/6yI3YVZWjwBz5XTrC0dAoZ.
{"copyright_id":"0xaa91a5c14d1bbbf3b069fbfaf09ad10d4ca4dc2442f4f62ff58a1d78a332347a","isrc":"GBEWA2206290","name":"Don't Look Down (feat. Natalie Shay) - Grafix Remix","registered_at":"2026-06-10T00:51:40Z","spotify_id":"1xGkCLBisHTlHKe9YW5yp4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa91a5c14d1bbbf3b069fbfaf09ad10d4ca4dc2442f4f62ff58a1d78a332347a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1xGkCLBisHTlHKe9YW5yp4.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/1xGkCLBisHTlHKe9YW5yp4.
Crazy What Love Can Do (Extended Remixes)
{"copyright_id":"0x234d9bcdac40eaef53594f226f06e55c1b1d8b20a5f6937fe5875c7d7ffa480c","isrc":"GBUM72306826","name":"I Found You - Grafix Remix","registered_at":"2026-06-06T01:38:40Z","spotify_id":"5jeEwlLMObIxZS38IyfGrz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234d9bcdac40eaef53594f226f06e55c1b1d8b20a5f6937fe5875c7d7ffa480c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5jeEwlLMObIxZS38IyfGrz.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/5jeEwlLMObIxZS38IyfGrz.
Don't Want You Back (feat. Kiesza) - Fred V & Grafix Remix
Don't Want You Back (Remixes) (feat. Kiesza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59b9d84241bb7c8dad5617069a81bd826e0eb194e450c7651428e6dac59173a. 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/7jFtoAlHAePl8Z2HS5uIZr.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/7jFtoAlHAePl8Z2HS5uIZr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebf4132a12055fd1cd25de9bc784c07fe98c0643b16d2ee4f46d28b96affbf8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6z3I6oveQWBsM14qV76MAi.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/6z3I6oveQWBsM14qV76MAi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b4f4c13389243c3a612192e787f9f56f8eaa8856e902fdc83b806d53d343ec. 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/4g3BnSXOi6wotTLgFoFxUq.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/4g3BnSXOi6wotTLgFoFxUq.
{"copyright_id":"0x9aa1c327f2c580ee590bd9d80eaec20e417b0ff21f72df67398606b01adbe70e","isrc":"ATME81100201","name":"One of These Days","registered_at":"2026-06-21T23:34:45Z","spotify_id":"3c3x32R0zhnRcvLigTg4ys","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa1c327f2c580ee590bd9d80eaec20e417b0ff21f72df67398606b01adbe70e. 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/3c3x32R0zhnRcvLigTg4ys.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/3c3x32R0zhnRcvLigTg4ys.
{"copyright_id":"0x7f7d2f387d7222fd859089ecf872e59d2565ca5179a7525126ef7a7dccfbcabf","isrc":"US38Y2421379","name":"Miss A Moment - Mixed","registered_at":"2026-06-18T13:13:06Z","spotify_id":"7upkqBDQuKs3Whg2e5RhLC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7d2f387d7222fd859089ecf872e59d2565ca5179a7525126ef7a7dccfbcabf. 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/7upkqBDQuKs3Whg2e5RhLC.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/7upkqBDQuKs3Whg2e5RhLC.
{"copyright_id":"0x62d37337c935fe5bd1e4a5e4fa1aabe1aee9b996b0de25da57e62a8722136cbd","isrc":"GBCJY2000000","name":"Blue Dreams","registered_at":"2026-06-17T22:55:14Z","spotify_id":"5kkBFYuqKvryCWUP9CtySM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d37337c935fe5bd1e4a5e4fa1aabe1aee9b996b0de25da57e62a8722136cbd. 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/5kkBFYuqKvryCWUP9CtySM.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/5kkBFYuqKvryCWUP9CtySM.