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 0x66b75d15e3d31104f8b1ffa622763187818cc6d3d2621bf8888680e217ddddbf. 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/73a8d8fe-267a-47f7-b026-b5f390b0a3fb.json and https://artists.proofprofile.net/proofs/artist/73a8d8fe-267a-47f7-b026-b5f390b0a3fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x20060a649e837188be4684918a713ef7f6f48701dde00c261c45d0e0d86f8a2d","isrc":"QZGXC2400455","name":"Turn Your Eyes Upon Jesus - Intro","registered_at":"2026-06-27T16:59:01Z","spotify_id":"55ltvmfaHZSfs8l12b53IL","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 0x20060a649e837188be4684918a713ef7f6f48701dde00c261c45d0e0d86f8a2d. 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/55ltvmfaHZSfs8l12b53IL.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/55ltvmfaHZSfs8l12b53IL.
Pure / Nothing Else / We are Hungry - Live Medley
{"copyright_id":"0x5bc4a4feff0a4362f8dbf713d44da74a2efb6bc88e6192527ef868d8ff4c8952","isrc":"QZGXC2300893","name":"Pure / Nothing Else / We are Hungry - Live Medley","registered_at":"2026-06-22T21:49:53Z","spotify_id":"0y59s6XBd31vWGC96GWXyk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc4a4feff0a4362f8dbf713d44da74a2efb6bc88e6192527ef868d8ff4c8952. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0y59s6XBd31vWGC96GWXyk.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/0y59s6XBd31vWGC96GWXyk.
{"copyright_id":"0xe4ad8b31a68c4645ba3a586ab81591b6e1b8f8b97c4913494d64fcebbb3239f0","isrc":"QZGXC2301160","name":"Your Love is Strong","registered_at":"2026-06-20T12:39:33Z","spotify_id":"2b3DYpGphnor10Qzx53sdd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ad8b31a68c4645ba3a586ab81591b6e1b8f8b97c4913494d64fcebbb3239f0. 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/2b3DYpGphnor10Qzx53sdd.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/2b3DYpGphnor10Qzx53sdd.
{"copyright_id":"0xb26f22d00b3e9e4dea4b8d0d9f51afcb329d0aba4e4021dcee2951be3e80e313","isrc":"QZGXC2400087","name":"Every Good Thing","registered_at":"2026-06-19T17:43:57Z","spotify_id":"3MUfwdlmd4jy8pZ3FPyoj2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26f22d00b3e9e4dea4b8d0d9f51afcb329d0aba4e4021dcee2951be3e80e313. 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/3MUfwdlmd4jy8pZ3FPyoj2.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/3MUfwdlmd4jy8pZ3FPyoj2.
Lord From Sorrows Deep I Call / Still On The Throne - Live Medley
{"copyright_id":"0x3bbfa09a9f7bdd91802532d57d79974750d76c5140fb4a4b40a26f34cfc1f4bb","isrc":"QZGXC2400169","name":"Lord From Sorrows Deep I Call / Still On The Throne - Live Medley","registered_at":"2026-06-25T14:39:21Z","spotify_id":"7baVQzSLjpEHpP0jcDncWT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbfa09a9f7bdd91802532d57d79974750d76c5140fb4a4b40a26f34cfc1f4bb. 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/7baVQzSLjpEHpP0jcDncWT.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/7baVQzSLjpEHpP0jcDncWT.
{"copyright_id":"0xce70c4c75d7d761548592b89ad1f61455b12bf29eb48e027e7f21177d74978c1","isrc":"QZGXC2400456","name":"Highlands (Song of Ascent)","registered_at":"2026-06-05T09:55:19Z","spotify_id":"3Zyz8rGBTpSlCUUwIROIPe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce70c4c75d7d761548592b89ad1f61455b12bf29eb48e027e7f21177d74978c1. 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/3Zyz8rGBTpSlCUUwIROIPe.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/3Zyz8rGBTpSlCUUwIROIPe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91ea01e6865824da374f49b8dd648028830022d57a79e78c8251d0fac0420bf. 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/03BYn5nNoR7B1Jaorqgg3L.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/03BYn5nNoR7B1Jaorqgg3L.
Lord From Sorrows Deep I Call / Still On The Throne (Live Medley)
{"copyright_id":"0x3bbfa09a9f7bdd91802532d57d79974750d76c5140fb4a4b40a26f34cfc1f4bb","isrc":"QZGXC2400169","name":"Lord From Sorrows Deep I Call / Still On The Throne - Live Medley","registered_at":"2026-06-25T14:39:21Z","spotify_id":"1YqvlHlbOfHh0GAxXNFij1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbfa09a9f7bdd91802532d57d79974750d76c5140fb4a4b40a26f34cfc1f4bb. 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/1YqvlHlbOfHh0GAxXNFij1.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/1YqvlHlbOfHh0GAxXNFij1.
{"copyright_id":"0xb26f22d00b3e9e4dea4b8d0d9f51afcb329d0aba4e4021dcee2951be3e80e313","isrc":"QZGXC2400087","name":"Every Good Thing","registered_at":"2026-06-19T17:43:57Z","spotify_id":"53DHeRKtAtdDgCi2vfrgqs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26f22d00b3e9e4dea4b8d0d9f51afcb329d0aba4e4021dcee2951be3e80e313. 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/53DHeRKtAtdDgCi2vfrgqs.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/53DHeRKtAtdDgCi2vfrgqs.
{"copyright_id":"0xe4ad8b31a68c4645ba3a586ab81591b6e1b8f8b97c4913494d64fcebbb3239f0","isrc":"QZGXC2301160","name":"Your Love is Strong","registered_at":"2026-06-20T12:39:33Z","spotify_id":"3is6LfFLkhw3ZIkLEyIEDH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ad8b31a68c4645ba3a586ab81591b6e1b8f8b97c4913494d64fcebbb3239f0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3is6LfFLkhw3ZIkLEyIEDH.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/3is6LfFLkhw3ZIkLEyIEDH.
Pure / Nothing Else / We are Hungry (Live Medley)
{"copyright_id":"0x5bc4a4feff0a4362f8dbf713d44da74a2efb6bc88e6192527ef868d8ff4c8952","isrc":"QZGXC2300893","name":"Pure / Nothing Else / We are Hungry - Live Medley","registered_at":"2026-06-22T21:49:53Z","spotify_id":"60chiU09w4e41xc2oTegDN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc4a4feff0a4362f8dbf713d44da74a2efb6bc88e6192527ef868d8ff4c8952. 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/60chiU09w4e41xc2oTegDN.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/60chiU09w4e41xc2oTegDN.
{"copyright_id":"0x1b7c91b8c67ae2f1d4da03d417caefbd7e58a1fdd129c7f95caae29e2a9d6362","isrc":"QZGXC2200275","name":"Break Every Boundary","registered_at":"2026-06-26T14:37:46Z","spotify_id":"1nDhSCOgxX4BY0l9aBTTqE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7c91b8c67ae2f1d4da03d417caefbd7e58a1fdd129c7f95caae29e2a9d6362. 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/1nDhSCOgxX4BY0l9aBTTqE.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/1nDhSCOgxX4BY0l9aBTTqE.
{"copyright_id":"0x5b83a72cbb8bcea1221fd0f84fd6b2b18aa0a847a7bb16195bd64ce040fae39c","isrc":"QZGXC2200149","name":"If It Comes From You","registered_at":"2026-06-24T03:32:40Z","spotify_id":"1TXEoiSeCPgMfBfoc9LhZf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b83a72cbb8bcea1221fd0f84fd6b2b18aa0a847a7bb16195bd64ce040fae39c. 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/1TXEoiSeCPgMfBfoc9LhZf.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/1TXEoiSeCPgMfBfoc9LhZf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93dd77b22b885a39b7bf64717d2389021eeb85151d528740ac9ef00604b50db. 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/4GZJHlMpDxNQ2kEbAct4Oz.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/4GZJHlMpDxNQ2kEbAct4Oz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf342438243dd41e137939e853fbfef6d2f700d33ca62e285a9072e555b3c2602. 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/7FPk4lvq4NbxZhAcVn6vdI.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/7FPk4lvq4NbxZhAcVn6vdI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b110bd5745a93ac81bd41e9f01a006559f08c0c5f13347d3c067278743ce1c5. 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/1qsEAIc9c4DHMnhLdOfkPa.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/1qsEAIc9c4DHMnhLdOfkPa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f01b452a9d37d53bcd7206413c1c846492f35cd0f4086099a4af73d251b2848. 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/5rgJYwl4nA3pPnncObOsD2.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/5rgJYwl4nA3pPnncObOsD2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cada5fcd4b796cf98ba151372b12301e1cd4a729391791283332535c3618e8d. 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/4aJF4yZ2bTfeHjuDiDD1ix.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/4aJF4yZ2bTfeHjuDiDD1ix.
{"copyright_id":"0x27d7f09206d2409653c739a69bcdb66ad0f1ec3708bcf9a76968ef26dd2c38fe","isrc":"QZFYZ1961216","name":"Dearly Loved","registered_at":"2026-06-07T05:29:12Z","spotify_id":"5ARJNdFbSj2yYpaAKPfIDo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d7f09206d2409653c739a69bcdb66ad0f1ec3708bcf9a76968ef26dd2c38fe. 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/5ARJNdFbSj2yYpaAKPfIDo.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/5ARJNdFbSj2yYpaAKPfIDo.
The Way (New Horizon) / Let Everything That Has Breath
{"copyright_id":"0x5953745767ec76043ab6872049df077ae904b177d4221e7f16520a739f249933","isrc":"QZFYZ1978008","name":"The Way (New Horizon) / Let Everything That Has Breath","registered_at":"2026-06-06T21:15:19Z","spotify_id":"3ZpIZocT9gPDpWCW1FFk49","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5953745767ec76043ab6872049df077ae904b177d4221e7f16520a739f249933. 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/3ZpIZocT9gPDpWCW1FFk49.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/3ZpIZocT9gPDpWCW1FFk49.
Build Me up Buttercup / Blank Space / Waiting in Vain
Baby, It's Cold Outside (feat. Brett Rutledge)