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 0x2bdaf3c437733c73e23992312c35a9bad2276d3ff72bc7273b20aa6ebf3f40b1. 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/a3388c1b-33f9-4486-91ec-3cd9bef4d485.json and https://artists.proofprofile.net/proofs/artist/a3388c1b-33f9-4486-91ec-3cd9bef4d485.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 0x32f6026a6d6dc1df912c496aa49fa28558abcf21eee1441366684b910855da06. 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/5DDof4RIHI97FK9BsG00qO.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/5DDof4RIHI97FK9BsG00qO.
{"copyright_id":"0xd9cd48eb67e507c25b7274de77650c271fca88e610ca989add0406d686dcb4dc","isrc":"US4KC1635002","name":"No Anchor","registered_at":"2026-06-06T00:51:08Z","spotify_id":"0CL0dyPjXIE8zaAbCmvqVL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cd48eb67e507c25b7274de77650c271fca88e610ca989add0406d686dcb4dc. 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/0CL0dyPjXIE8zaAbCmvqVL.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/0CL0dyPjXIE8zaAbCmvqVL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309a359197b946cd02672cb4eca14d0910b12bc2661caa00accf884533a07661. 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/2o9pbVazBIv3KEzY9KK1Hy.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/2o9pbVazBIv3KEzY9KK1Hy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca83a29239bd67e53d735080e74fa835d1bf51bacde9f4ef33da57d6e90d8766. 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/6L7Wc2usHoOCA239dK1PlU.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/6L7Wc2usHoOCA239dK1PlU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d73d6b6101ca2c2209dfd880fd94994cea5147bbd7c7bd755bd64974d09690. 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/1JbcRVeDVSnMcir769MUfR.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/1JbcRVeDVSnMcir769MUfR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134df70b8c341ece6d20030654e2cecf84d064ccaac27932c6822a9d39490121. 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/3bdkQhR6Y6rW39stkhf6IT.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/3bdkQhR6Y6rW39stkhf6IT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedc870bc012ae8adddeca1696c8d0d71a01a05e0a0d620524d82f7d69059fd4. 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/41TS9438epFTtEzHPJzl4h.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/41TS9438epFTtEzHPJzl4h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907e937318cccf133a33aefc1e2c1f55f32afd30c56075bba13cbb2bf2310c95. 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/0st42xforBhP5Sv9oSEo3f.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/0st42xforBhP5Sv9oSEo3f.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf26135d0bbd3c2f299283ca3fe4e2a8b015caa221123361ddcaa0d9b41452b1. 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/6hJVKcUuaYEbZTyz55WkKP.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/6hJVKcUuaYEbZTyz55WkKP.
{"copyright_id":"0xe730330803234f43655f4cc4434feff95bb5d088b347a8f5d9ebf78d1beead05","isrc":"US4KC1635010","name":"Dark Days","registered_at":"2026-06-26T11:03:08Z","spotify_id":"6smDok3spqKuabuXAFkkQk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe730330803234f43655f4cc4434feff95bb5d088b347a8f5d9ebf78d1beead05. 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/6smDok3spqKuabuXAFkkQk.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/6smDok3spqKuabuXAFkkQk.
{"copyright_id":"0xed4a7ddfcf7cdd12cbf8c17daf1f7ac95d31e9c6385d63e50686b09805add866","isrc":"US4KC1232301","name":"Dream in My Head","registered_at":"2026-06-11T00:52:57Z","spotify_id":"4WGBQBknHbJHGHrFNvNifl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4a7ddfcf7cdd12cbf8c17daf1f7ac95d31e9c6385d63e50686b09805add866. 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/4WGBQBknHbJHGHrFNvNifl.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/4WGBQBknHbJHGHrFNvNifl.
{"copyright_id":"0xa5dc21c5d559520fc43693f487d7e1bdd418a23933d6e1eaca6b33489b69bbae","isrc":"US4KC1232302","name":"Poison Friends","registered_at":"2026-06-18T12:29:11Z","spotify_id":"2sTRJVItgSFt0ieFwEq4LY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5dc21c5d559520fc43693f487d7e1bdd418a23933d6e1eaca6b33489b69bbae. 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/2sTRJVItgSFt0ieFwEq4LY.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/2sTRJVItgSFt0ieFwEq4LY.
{"copyright_id":"0x3d802257bfa868be89dd73b64ca11b0f206cbc4a3a965d656601c2ba9fd9ffe1","isrc":"US4KC1232304","name":"Heavy Rolling Thunder","registered_at":"2026-06-11T01:07:49Z","spotify_id":"2VdJ9KBFmykBXY9LeZPQf0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d802257bfa868be89dd73b64ca11b0f206cbc4a3a965d656601c2ba9fd9ffe1. 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/2VdJ9KBFmykBXY9LeZPQf0.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/2VdJ9KBFmykBXY9LeZPQf0.
{"copyright_id":"0xdece65b0c580386a6c0e6336e3bbe2d58cd6d82afaa4d38b80afdedc7a6fe9dd","isrc":"US4KC1232305","name":"Lonely Days","registered_at":"2026-06-07T04:40:20Z","spotify_id":"5ZPbNoACcnPZvpxjQD69jo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdece65b0c580386a6c0e6336e3bbe2d58cd6d82afaa4d38b80afdedc7a6fe9dd. 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/5ZPbNoACcnPZvpxjQD69jo.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/5ZPbNoACcnPZvpxjQD69jo.
{"copyright_id":"0x003263e6b3fbe07dea6ed2c10af452e43cc4716f527b77a3eaafbfc9ff1e4a05","isrc":"US4KC1232309","name":"Never Have Time","registered_at":"2026-06-07T11:56:18Z","spotify_id":"7wmWI9tfY3gZGPNtzPZzwo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003263e6b3fbe07dea6ed2c10af452e43cc4716f527b77a3eaafbfc9ff1e4a05. 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/7wmWI9tfY3gZGPNtzPZzwo.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/7wmWI9tfY3gZGPNtzPZzwo.
When You're Outta Your Mind - Download-Only Bonus Track
{"copyright_id":"0xce1cc83c15227f9311e81b940d5167dedc15533b5192ca5d7af8e89589839efe","isrc":"US4KC1232311","name":"When You're Outta Your Mind - Download-Only Bonus Track","registered_at":"2026-06-07T17:08:50Z","spotify_id":"5j1kZuGANAkg0OZ9hc88XN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1cc83c15227f9311e81b940d5167dedc15533b5192ca5d7af8e89589839efe. 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/5j1kZuGANAkg0OZ9hc88XN.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/5j1kZuGANAkg0OZ9hc88XN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f5c8135045b7494198388e57c60e7b66c03243907525acc62ed83433e44ab0. 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/4HjQDrbgClU079lrtRYWfU.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/4HjQDrbgClU079lrtRYWfU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac08f6638a6fae3b5bf20214a096109dde9ab5578e509b018dba3d122360344. 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/0BT4KsPL7GmU3y8spBEJvD.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/0BT4KsPL7GmU3y8spBEJvD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d65204354100961a397382f767b85b2e79d1595d127a0734cf0fd473fac7c3. 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/7EiKH6n09ouLtlgBdMtOCA.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/7EiKH6n09ouLtlgBdMtOCA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dba893900a7464c65e9f571e1f77a3c387c0dbf71123371d71402a4128a191. 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/3WJBKrUpxTo1ELS5QPwhQD.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/3WJBKrUpxTo1ELS5QPwhQD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf662a1801cd7ae32524bf4b5491c718ce5452604dd18df5efd89ae3a4e4ae4fb. 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/7vbzivH7qe2gWe2em1a70s.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/7vbzivH7qe2gWe2em1a70s.
{"copyright_id":"0xdd6da29c8b9b73d3393b2ac8b233e1fbc3f8d5d483ba46159d03e03d074a2faa","isrc":"US4KC0824710","name":"Hey B","registered_at":"2026-06-28T01:56:50Z","spotify_id":"6eQwnGzFVTmHVah8Uw0Qsj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6da29c8b9b73d3393b2ac8b233e1fbc3f8d5d483ba46159d03e03d074a2faa. 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/6eQwnGzFVTmHVah8Uw0Qsj.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/6eQwnGzFVTmHVah8Uw0Qsj.
{"copyright_id":"0xe1093345f9a2ba4f751611343ac47d2bd04dd44d66740d5e93af3aa278974ddf","isrc":"US4KC1332601","name":"How Much Shit Can You Take?","registered_at":"2026-06-19T21:34:52Z","spotify_id":"7mnlHQLX82hBVhJ8qNWKt2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1093345f9a2ba4f751611343ac47d2bd04dd44d66740d5e93af3aa278974ddf. 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/7mnlHQLX82hBVhJ8qNWKt2.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/7mnlHQLX82hBVhJ8qNWKt2.