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 0x6d8c917d87192f2972da602e580d2a7d8ea83dda9643303cb7ed7b15b226bd1c. 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/54e6a1a2-7ae8-46df-a895-55ccb3df0d37.json and https://artists.proofprofile.net/proofs/artist/54e6a1a2-7ae8-46df-a895-55ccb3df0d37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xfe2b5fee60d569f1eed6ef2e9351e26014509dca9520d5258f7400da022d6c5e","isrc":"CA6D22100648","name":"Me + You - With Løve Remix","registered_at":"2026-06-06T10:23:53Z","spotify_id":"1zVoCYS8vLibUr52cggUvy","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 0xfe2b5fee60d569f1eed6ef2e9351e26014509dca9520d5258f7400da022d6c5e. 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/1zVoCYS8vLibUr52cggUvy.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/1zVoCYS8vLibUr52cggUvy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d821257f7dbd64e9ac8d3453ef07500a8d195636438c2558c24a8048a3a3ba. 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/5ae5r3P80L7pYteSRzddnm.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/5ae5r3P80L7pYteSRzddnm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3854637d650579d41a4b3625012d93df34ec654969c3ea3a4f57421275d58c. 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/48rxQj8rrELCNSfjVTCKGU.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/48rxQj8rrELCNSfjVTCKGU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd27459762e619e4d557c5d37ef3806a2145cf1a6f1a5482976e9f1de5c528b. 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/1dAFqBKY27I4XO1QrDm4LT.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/1dAFqBKY27I4XO1QrDm4LT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4c78423e83108fd80925c3a5c9115b0d1d74a24d77d5ff6513287c6389a0f4. 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/1ajcwEGbi68QqkObA1mTJZ.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/1ajcwEGbi68QqkObA1mTJZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b56f19728a6990cc1015715f13954f41add720187dd3e400ed4fd11183fc597. 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/5nAcDjHi1Sn9d24ZPwYpZc.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/5nAcDjHi1Sn9d24ZPwYpZc.
{"copyright_id":"0xa075d924270e54b1196ad0738434eead58c15cb43887bcec5602ab3495eccf8a","isrc":"GB2LD2210212","name":"Ready For Love","registered_at":"2026-06-10T20:38:21Z","spotify_id":"0K7XBpcCaoEFnWRWbeuG3C","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa075d924270e54b1196ad0738434eead58c15cb43887bcec5602ab3495eccf8a. 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/0K7XBpcCaoEFnWRWbeuG3C.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/0K7XBpcCaoEFnWRWbeuG3C.
{"copyright_id":"0xd4dd1cba765bfb5b659f044eaca67c921b5e602eaa6ac39d62bc9addd1b7dbe5","isrc":"CA6D22100772","name":"Falling For You","registered_at":"2026-06-05T17:49:08Z","spotify_id":"6EW5mHMHEcsL1RSpy1HQ6p","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dd1cba765bfb5b659f044eaca67c921b5e602eaa6ac39d62bc9addd1b7dbe5. 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/6EW5mHMHEcsL1RSpy1HQ6p.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/6EW5mHMHEcsL1RSpy1HQ6p.
{"copyright_id":"0x93e20b176cdfc6f2a42aa738011b29d1d07809e1535a81abe8bd3d0af4ab303e","isrc":"CA5KR2472886","name":"Heart Don't Work Like That","registered_at":"2026-06-19T13:53:26Z","spotify_id":"2YTErpPevk9REk3z0kvRzV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e20b176cdfc6f2a42aa738011b29d1d07809e1535a81abe8bd3d0af4ab303e. 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/2YTErpPevk9REk3z0kvRzV.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/2YTErpPevk9REk3z0kvRzV.
{"copyright_id":"0x11ed2fde40cde4a1c36813eb3ffcbc5d6d6b62d29b0ce28aa078e29ba4cf37b1","isrc":"UKZGC2308554","name":"North Star - KENDRO & JONJEN Remix","registered_at":"2026-06-10T16:03:51Z","spotify_id":"7kbX7buRUboU1tSuiGOzX4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ed2fde40cde4a1c36813eb3ffcbc5d6d6b62d29b0ce28aa078e29ba4cf37b1. 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/7kbX7buRUboU1tSuiGOzX4.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/7kbX7buRUboU1tSuiGOzX4.
{"copyright_id":"0x8b6fe24253cb4cc57532e336ffe3945c72acc4a761fb1fa37ed7e16d1ecb6f82","isrc":"UKZGC2308555","name":"North Star - Pure 100% Remix","registered_at":"2026-06-18T14:19:34Z","spotify_id":"3gnT9ceqdqC3zPFlxUOwh5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6fe24253cb4cc57532e336ffe3945c72acc4a761fb1fa37ed7e16d1ecb6f82. 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/3gnT9ceqdqC3zPFlxUOwh5.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/3gnT9ceqdqC3zPFlxUOwh5.
{"copyright_id":"0x593a93a47dc88d7b10167c0565db1ab2ae274f2444b0af539a2a2833132ede69","isrc":"UKZGC2308556","name":"North Star - SPIRIT LINK Remix","registered_at":"2026-06-23T00:25:31Z","spotify_id":"5ZdfdiHbjRGu4LZxWUE66C","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593a93a47dc88d7b10167c0565db1ab2ae274f2444b0af539a2a2833132ede69. 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/5ZdfdiHbjRGu4LZxWUE66C.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/5ZdfdiHbjRGu4LZxWUE66C.
{"copyright_id":"0xfb0c979bc79a7f4c7e2469b340988476278bdf68eb0bfcfe9ea402ce2faf33db","isrc":"UKZGC2308557","name":"North Star - Skies Remix","registered_at":"2026-06-07T12:47:47Z","spotify_id":"60L07R1bxjbimhhZRibgpV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0c979bc79a7f4c7e2469b340988476278bdf68eb0bfcfe9ea402ce2faf33db. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/60L07R1bxjbimhhZRibgpV.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/60L07R1bxjbimhhZRibgpV.
{"copyright_id":"0xc5e7daf3c62c33f0ca506cfa6ccd6e9b29e94ea91d9404128f3cacab89234125","isrc":"UKZGC2308558","name":"North Star - jiko Remix","registered_at":"2026-06-17T22:14:00Z","spotify_id":"47gK36Rpexplq5pwbNsfFb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e7daf3c62c33f0ca506cfa6ccd6e9b29e94ea91d9404128f3cacab89234125. 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/47gK36Rpexplq5pwbNsfFb.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/47gK36Rpexplq5pwbNsfFb.
{"copyright_id":"0x8fd0c9d08be7f2032802a140a1da797738cfd1dfef0fb438936f741b414ad6cd","isrc":"UKZGC2304008","name":"North Star","registered_at":"2026-06-22T04:48:47Z","spotify_id":"3DN82YS31MFRTcxmEXUvIK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd0c9d08be7f2032802a140a1da797738cfd1dfef0fb438936f741b414ad6cd. 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/3DN82YS31MFRTcxmEXUvIK.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/3DN82YS31MFRTcxmEXUvIK.
{"copyright_id":"0x2689ffddee686d9f4cedb7207a49dbe5c95e8b6e0bb803f29e820ff2478cdecd","isrc":"CA6D22100227","name":"I Need Ya","registered_at":"2026-06-23T03:12:12Z","spotify_id":"0KcTvRKMYdX2zcrKSEukDH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2689ffddee686d9f4cedb7207a49dbe5c95e8b6e0bb803f29e820ff2478cdecd. 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/0KcTvRKMYdX2zcrKSEukDH.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/0KcTvRKMYdX2zcrKSEukDH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a377e1dbeb091115ee328457bef5be078826e3a81d0f7760ef49354faca14b3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2SCcJ4V8eTt0WaQD4WK9Rl.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/2SCcJ4V8eTt0WaQD4WK9Rl.