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 0xd16d4ec4cb860398bc8558b859c18ef8ff67fdab58136c786ad9c1988055a3f7. 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/b5b321ad-0010-4725-8a97-9ddbd5bd422d.json and https://artists.proofprofile.net/proofs/artist/b5b321ad-0010-4725-8a97-9ddbd5bd422d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x3e3cd0146131e916e15f4ef89b429ea3af5e656b4c1f7f13e6f146200839e019","isrc":"USM2C0701208","name":"Messiah / You're Beautiful","registered_at":"2026-06-04T10:05:51Z","spotify_id":"6vLOjUphbNT9Q21euUuCSZ","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 0x3e3cd0146131e916e15f4ef89b429ea3af5e656b4c1f7f13e6f146200839e019. 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/6vLOjUphbNT9Q21euUuCSZ.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/6vLOjUphbNT9Q21euUuCSZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b107a1d1e4d156bbcfd3c584978f00513863f073b05698ae990c007dda156c1. 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/3QMwYjjg2r9jdzj6w6vR6e.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/3QMwYjjg2r9jdzj6w6vR6e.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42c3bdb303902b35886afe837540e494ddfaa8249144d68c9a8920493fd85c6. 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/6mlQA9lbTbVlwKPwWGfjcI.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/6mlQA9lbTbVlwKPwWGfjcI.
Worthy Of My Song (Worthy of It All) [feat. Phil Wickham & Mav City Gospel Choir] - Sped Up
{"copyright_id":"0x17873c608df2a84f7318348ed55af2e433aaa5b25d72032b763d10b42f71eb2a","isrc":"QMFMF2300241","name":"Worthy Of My Song (Worthy of It All) [feat. Phil Wickham & Mav City Gospel Choir] - Sped Up","registered_at":"2026-06-26T18:07:31Z","spotify_id":"3FX0DWp6XwBeZ8M0klwuGw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17873c608df2a84f7318348ed55af2e433aaa5b25d72032b763d10b42f71eb2a. 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/3FX0DWp6XwBeZ8M0klwuGw.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/3FX0DWp6XwBeZ8M0klwuGw.
The Christmas Song (Chestnuts Roasting On An Open Fire)
Brett Young & Friends Sing The Christmas Classics
{"copyright_id":"0x957664ddc02f169c56e9ae20f09fd38f038fe69361e01e0a205da8f31b8cbb7a","isrc":"QZRD92100494","name":"The Christmas Song (Chestnuts Roasting On An Open Fire)","registered_at":"2026-06-20T07:10:47Z","spotify_id":"7Kj8dS5Myv4c8UBgKQ6GPy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957664ddc02f169c56e9ae20f09fd38f038fe69361e01e0a205da8f31b8cbb7a. 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/7Kj8dS5Myv4c8UBgKQ6GPy.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/7Kj8dS5Myv4c8UBgKQ6GPy.
Worthy Of My Song (feat. Phil Wickham , Mav City Gospel Choir, Chandler Moore, Naomi Raine)
{"copyright_id":"0xa6facda22ab3abc0426fc61d6452627627c162e767ed214bc2d23cfbd308a0b2","isrc":"QMDA62390109","name":"Worthy Of My Song (feat. Phil Wickham , Mav City Gospel Choir, Chandler Moore, Naomi Raine)","registered_at":"2026-06-04T10:34:02Z","spotify_id":"4bOPQjOkpCUnhreJgaCclC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6facda22ab3abc0426fc61d6452627627c162e767ed214bc2d23cfbd308a0b2. 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/4bOPQjOkpCUnhreJgaCclC.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/4bOPQjOkpCUnhreJgaCclC.
{"copyright_id":"0x414f600c8e4e7a1f124997a6943f5ae6fedd85a566dca075a91abb178897e42d","isrc":"QM4TX2230212","name":"Worthy of My Song (Worthy of It All)","registered_at":"2026-06-04T08:08:08Z","spotify_id":"4YFy1VOf7pV1PF6rSxiz1v","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414f600c8e4e7a1f124997a6943f5ae6fedd85a566dca075a91abb178897e42d. 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/4YFy1VOf7pV1PF6rSxiz1v.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/4YFy1VOf7pV1PF6rSxiz1v.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322f3cd1961674357a8c8817c3b0f7407873bfba88a33fa06217eeb28d309ce7. 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/3Z9PzaSZbEPoQssPnQdbPx.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/3Z9PzaSZbEPoQssPnQdbPx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd2838e0f08f8cdb1e4992945559257674050012b33a41197a7033ea37c4461. 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/6luBkvS2OV4uQrUBu5qv4N.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/6luBkvS2OV4uQrUBu5qv4N.
{"copyright_id":"0x057d46ad92c926814aa97bc0769c828df31a911dff534dabc7d08c30ead23983","isrc":"USDHM1825697","name":"Joy to the World (Joyful, Joyful)","registered_at":"2026-06-10T06:06:41Z","spotify_id":"2CBsK876b5MGc6PXorYiaB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057d46ad92c926814aa97bc0769c828df31a911dff534dabc7d08c30ead23983. 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/2CBsK876b5MGc6PXorYiaB.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/2CBsK876b5MGc6PXorYiaB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc67acdf1c27846f45d8ea3af92a94a92c1a191f77db34d5b3611d4570526d1. 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/6DEve01Q8cnzt698HJyl9D.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/6DEve01Q8cnzt698HJyl9D.
{"copyright_id":"0xfac81efbdbcebd85f398b57fc06082b2d3d58a1d362fc15e816b8cd131d1367a","isrc":"USM2C2300101","name":"This Is Our God","registered_at":"2026-06-04T06:11:54Z","spotify_id":"546XGtVu1EXXr4ofJIbUnE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac81efbdbcebd85f398b57fc06082b2d3d58a1d362fc15e816b8cd131d1367a. 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/546XGtVu1EXXr4ofJIbUnE.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/546XGtVu1EXXr4ofJIbUnE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5752f627a8b48b0eb34db6e553ae9e3c95031ba34632debe44b882c7c6206b4a. 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/0XyS7ARIsq2klBj13ovRku.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/0XyS7ARIsq2klBj13ovRku.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb7e4be4015e98cadbf41a0c349e1d91c480412b22953bf09957309514c4767. 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/7jXsHUyrXt3AcpUSOUvqKV.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/7jXsHUyrXt3AcpUSOUvqKV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba593061db957c070f6d4092f5052c3f953001dc7e6dff492d2a14e94066470. 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/1cRXCjQEcECoGYZR0TYufL.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/1cRXCjQEcECoGYZR0TYufL.
{"copyright_id":"0x95f993503dadd41fc371ae095ac3404b40b456fb32f3442cface9d093b38a4cb","isrc":"USM2C2300106","name":"Praise The Lord","registered_at":"2026-06-05T21:36:16Z","spotify_id":"5Fe1EkypdZJ0vLhkYN6wT8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f993503dadd41fc371ae095ac3404b40b456fb32f3442cface9d093b38a4cb. 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/5Fe1EkypdZJ0vLhkYN6wT8.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/5Fe1EkypdZJ0vLhkYN6wT8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7af0c6d2f97a5dab787683f680d015999d7e6a56395a880613d5c0d4cc22cc2. 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/45gagYhypeVr6NmPkMztBC.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/45gagYhypeVr6NmPkMztBC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a21d56336d442bedca603185f4b7742ba11e89b1a6376dac581844cbcb1dce. 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/5WHKLU46t7LVgsfiOaW6q9.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/5WHKLU46t7LVgsfiOaW6q9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584f6ff2918bd7a6e997101bac0cca8a992a3a2d8bffcc6de376554ce599cf5f. 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/54g8PvCwANeo4U8tEsSn3W.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/54g8PvCwANeo4U8tEsSn3W.
{"copyright_id":"0x2e10ea538f59dfda94474088204cfd3045e91c2c9ce14cf29bebae6bfa06b214","isrc":"USM2C2300109","name":"Isn't He Good","registered_at":"2026-06-05T08:49:10Z","spotify_id":"4jyKroiJ0EQwkwJ5BaxKRK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e10ea538f59dfda94474088204cfd3045e91c2c9ce14cf29bebae6bfa06b214. 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/4jyKroiJ0EQwkwJ5BaxKRK.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/4jyKroiJ0EQwkwJ5BaxKRK.