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 0xf8d735ccdec0eda461607fbc11638a655734922d5eb14420b0047e7287f08eec. 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/8eef3b12-cacc-436f-b348-ba4a99ec5cec.json and https://artists.proofprofile.net/proofs/artist/8eef3b12-cacc-436f-b348-ba4a99ec5cec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x338e2c575ace37f0a6cb85dffe1df5a92157921cf36f87c21e0a1c9c8aea670d","isrc":"USYJA1700001","name":"Let Her Go","registered_at":"2026-06-04T12:34:53Z","spotify_id":"7ituEKbLHsjLQAQLpUW9os","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 0x338e2c575ace37f0a6cb85dffe1df5a92157921cf36f87c21e0a1c9c8aea670d. 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/7ituEKbLHsjLQAQLpUW9os.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/7ituEKbLHsjLQAQLpUW9os.
{"copyright_id":"0x4c449bfdfc4f5aa329f93bebe78dd12ee38eeae14218b2266e25614be3aeafd3","isrc":"USYJA1800013","name":"Lonesome, On'ry and Mean","registered_at":"2026-06-06T23:19:29Z","spotify_id":"5669xypz64eN8ZR2saKgZV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c449bfdfc4f5aa329f93bebe78dd12ee38eeae14218b2266e25614be3aeafd3. 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/5669xypz64eN8ZR2saKgZV.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/5669xypz64eN8ZR2saKgZV.
{"copyright_id":"0x54468291b40416143f001f64affbcf864e53617b0b17aaeaacc7fd08718a5c78","isrc":"USYJA1800014","name":"I Live on a Battlefield","registered_at":"2026-06-06T03:27:21Z","spotify_id":"2mocatUpTTi8AgKFxZrI8A","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54468291b40416143f001f64affbcf864e53617b0b17aaeaacc7fd08718a5c78. 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/2mocatUpTTi8AgKFxZrI8A.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/2mocatUpTTi8AgKFxZrI8A.
{"copyright_id":"0xf6811a43d096d86ba8e099daabaf4ad6f31a831bb9801b5965cad86b8492fe54","isrc":"USYJA1800015","name":"The Hardest Heart","registered_at":"2026-06-08T11:28:10Z","spotify_id":"0t4EhSP3jWlKi8DJYrdjvr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6811a43d096d86ba8e099daabaf4ad6f31a831bb9801b5965cad86b8492fe54. 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/0t4EhSP3jWlKi8DJYrdjvr.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/0t4EhSP3jWlKi8DJYrdjvr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2fc6ba57fb892ad3a3f73740edfbe663d1276b45c55a6013d78485a2c84953. 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/5OjNjA6BSNC3dpce7NBm1n.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/5OjNjA6BSNC3dpce7NBm1n.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbe793c76bee1dc55c5509d61d3729f28a698cc44d9281c863b3268e22fedf2. 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/2UhtHJMV4S0ilwryTYQ83L.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/2UhtHJMV4S0ilwryTYQ83L.
{"copyright_id":"0xcd8a10e3b1e6d472f3a8dc32fb0a20f9a1e987c260a473db9d7669a972aaf3de","isrc":"USYJA1800017","name":"The Shaker","registered_at":"2026-06-08T19:30:40Z","spotify_id":"27YClkudOMXyHWQobEZskh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8a10e3b1e6d472f3a8dc32fb0a20f9a1e987c260a473db9d7669a972aaf3de. 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/27YClkudOMXyHWQobEZskh.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/27YClkudOMXyHWQobEZskh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e818fc1a436417638f5a093359994f48430309f274445e53a111b21919abdbc. 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/09SHt1KsoRDWmE148TZyjq.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/09SHt1KsoRDWmE148TZyjq.
{"copyright_id":"0x85a5da82c372d67eef8fdaa0d3280cd4ac1ac5105d107b190492141bf51b449c","isrc":"USYJA1600013","name":"Cumberland Blues","registered_at":"2026-06-05T05:01:14Z","spotify_id":"1QTW8UKL88Jm1pOqf67zDw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a5da82c372d67eef8fdaa0d3280cd4ac1ac5105d107b190492141bf51b449c. 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/1QTW8UKL88Jm1pOqf67zDw.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/1QTW8UKL88Jm1pOqf67zDw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c06bdb712793229c426a074df5f7115276b38c6bcd459346f47c4e91205d8a8. 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/1KXuoxiOgJlqwoinUH16jW.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/1KXuoxiOgJlqwoinUH16jW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372cdf9d0ee3ce05644e47b2ce6c73551647a14aafe09e77ba8f1e6a1194b125. 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/2gtcvsyhKqhuLYlVMvkqFf.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/2gtcvsyhKqhuLYlVMvkqFf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6667418e70841260186bab9f63e59acc79675622343a6142fb599d7a126f3c1. 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/5qQfEFxIk3knjQuuNS2cTV.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/5qQfEFxIk3knjQuuNS2cTV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf162182587f86b9ede4de0905c12c875c94646e7186acd4dc8d5c65c28c123fe. 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/6Pki7hwuHHQLxjgXTlho7J.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/6Pki7hwuHHQLxjgXTlho7J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8af3867915b4b1454596e7789a9ea5e9c42b91c39398fda87ec2fe59ebf420. 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/18H1l758tx8f3pOH9VlQse.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/18H1l758tx8f3pOH9VlQse.
{"copyright_id":"0x01fd8e4785c7729e5ead7e7a0c4de73ef4acce86b6189ad2bedf200088b10393","isrc":"USYJA2300020","name":"Runaway Train","registered_at":"2026-06-08T19:24:03Z","spotify_id":"4d2JF1jbiEmOhZhSg9qFBN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fd8e4785c7729e5ead7e7a0c4de73ef4acce86b6189ad2bedf200088b10393. 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/4d2JF1jbiEmOhZhSg9qFBN.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/4d2JF1jbiEmOhZhSg9qFBN.
{"copyright_id":"0x07438bd37fc8c2cbc1a93cfcb626bfc5d96866b2f6146f83c27c28c7ae2ba2d3","isrc":"USYJA2200001","name":"I Like Beer","registered_at":"2026-06-24T12:46:50Z","spotify_id":"3djNbejSP1pSy44h7vrjRR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07438bd37fc8c2cbc1a93cfcb626bfc5d96866b2f6146f83c27c28c7ae2ba2d3. 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/3djNbejSP1pSy44h7vrjRR.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/3djNbejSP1pSy44h7vrjRR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da8ead346205d470868d4546a366c1386bf236d6e02e56ba1359b3668872e49. 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/4qk7rzD42EQHE80PvhXpSA.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/4qk7rzD42EQHE80PvhXpSA.
{"copyright_id":"0xe6a98529c6b7934ecada0f2fb0456972cb8e4129222ac23353a90bdec7280da8","isrc":"USYJA1800023","name":"For What It's Worth","registered_at":"2026-06-06T21:43:10Z","spotify_id":"6qpijfSrQd83SjS1AiUa5d","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a98529c6b7934ecada0f2fb0456972cb8e4129222ac23353a90bdec7280da8. 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/6qpijfSrQd83SjS1AiUa5d.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/6qpijfSrQd83SjS1AiUa5d.
House Fire (feat. The Travelin' McCourys)
{"copyright_id":"0x20f7547d382486cff260b94cac3dceaa10fdf28c3f341e6329a8de483a17e08e","isrc":"USRC12002396","name":"House Fire (feat. The Travelin' McCourys)","registered_at":"2026-06-04T11:44:40Z","spotify_id":"0kD9ESXYhdNDYDDNq3MIjc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f7547d382486cff260b94cac3dceaa10fdf28c3f341e6329a8de483a17e08e. 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/0kD9ESXYhdNDYDDNq3MIjc.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/0kD9ESXYhdNDYDDNq3MIjc.
Someone Like You (with The Travelin' McCourys & Sierra Ferrell)
{"copyright_id":"0xd265994e1105a92caa92f572badaa86cfbdb16c94484f10e7265ceb04813a1d6","isrc":"QZZVQ2400271","name":"Someone Like You (with The Travelin' McCourys & Sierra Ferrell)","registered_at":"2026-06-04T11:44:44Z","spotify_id":"0FzCkQZyXg3RAVe8hF3TbA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd265994e1105a92caa92f572badaa86cfbdb16c94484f10e7265ceb04813a1d6. 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/0FzCkQZyXg3RAVe8hF3TbA.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/0FzCkQZyXg3RAVe8hF3TbA.