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 0x2b65c9870df588be8fd1c8c5fe22cad7511c52325d20a781b1ac155bbf4562a7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1b8f89e-924d-415d-b3cb-85237ee9802d.json and https://artists.proofprofile.net/proofs/artist/b1b8f89e-924d-415d-b3cb-85237ee9802d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x279daa8703658e04eca6bacd11ef02d6b472dc6854da1921904f22f23d2c24ee","isrc":"USUG12305726","name":"Pickup Man","registered_at":"2026-06-01T22:29:31Z","spotify_id":"4MXqpnu9lAqqkjSHVlBVoZ","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 0x279daa8703658e04eca6bacd11ef02d6b472dc6854da1921904f22f23d2c24ee. 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/4MXqpnu9lAqqkjSHVlBVoZ.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/4MXqpnu9lAqqkjSHVlBVoZ.
{"copyright_id":"0x995f96867bae13d54b3fa9b011da5593df747ba4e0a34afa48754a8870c8cbc4","isrc":"USUG12305727","name":"John Deere Green","registered_at":"2026-06-04T07:04:39Z","spotify_id":"2yZ8YizgareeDNcqI3NbAH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995f96867bae13d54b3fa9b011da5593df747ba4e0a34afa48754a8870c8cbc4. 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/2yZ8YizgareeDNcqI3NbAH.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/2yZ8YizgareeDNcqI3NbAH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a57cbb5a1563ec230764b882f3d8a64334ad025381d856e442a59843fb87ca. 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/2ZXsvL9DO2MPv43Ay1IxgR.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/2ZXsvL9DO2MPv43Ay1IxgR.
{"copyright_id":"0xa3a50e9e267aeeaa0b6db118d0bdd872ecabe5b5ea7a9c8f0d8f8eb36dfed7a2","isrc":"USSM19401995","name":"Pickup Man","registered_at":"2026-06-01T18:18:36Z","spotify_id":"3QvOV1QYPPre7gjppKyeON","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a50e9e267aeeaa0b6db118d0bdd872ecabe5b5ea7a9c8f0d8f8eb36dfed7a2. 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/3QvOV1QYPPre7gjppKyeON.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/3QvOV1QYPPre7gjppKyeON.
{"copyright_id":"0xa3a50e9e267aeeaa0b6db118d0bdd872ecabe5b5ea7a9c8f0d8f8eb36dfed7a2","isrc":"USSM19401995","name":"Pickup Man","registered_at":"2026-06-03T00:38:28Z","spotify_id":"3dSUY34vmIYWJn0M6oZ3BD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a50e9e267aeeaa0b6db118d0bdd872ecabe5b5ea7a9c8f0d8f8eb36dfed7a2. 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/3dSUY34vmIYWJn0M6oZ3BD.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/3dSUY34vmIYWJn0M6oZ3BD.
Redneck Tendencies (HARDY feat. Trace Adkins, Joe Diffie)
{"copyright_id":"0x75542db16220249c37d2025a9314abcc718d8f3c9e9ee980b269c71570a867b3","isrc":"QZ22S1800069","name":"Redneck Tendencies (HARDY feat. Trace Adkins, Joe Diffie)","registered_at":"2026-06-04T08:20:26Z","spotify_id":"0AumwgFsruoFRZMxF1Z4Qv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75542db16220249c37d2025a9314abcc718d8f3c9e9ee980b269c71570a867b3. 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/0AumwgFsruoFRZMxF1Z4Qv.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/0AumwgFsruoFRZMxF1Z4Qv.
{"copyright_id":"0xa3a50e9e267aeeaa0b6db118d0bdd872ecabe5b5ea7a9c8f0d8f8eb36dfed7a2","isrc":"USSM19401995","name":"Pickup Man","registered_at":"2026-06-01T18:18:36Z","spotify_id":"2inv5ZiBWqm0eof0zw6FqV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a50e9e267aeeaa0b6db118d0bdd872ecabe5b5ea7a9c8f0d8f8eb36dfed7a2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2inv5ZiBWqm0eof0zw6FqV.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/2inv5ZiBWqm0eof0zw6FqV.
{"copyright_id":"0x995f96867bae13d54b3fa9b011da5593df747ba4e0a34afa48754a8870c8cbc4","isrc":"USUG12305727","name":"John Deere Green","registered_at":"2026-06-04T07:04:39Z","spotify_id":"4GfkMLJXxfM0NvmpaAbZrC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995f96867bae13d54b3fa9b011da5593df747ba4e0a34afa48754a8870c8cbc4. 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/4GfkMLJXxfM0NvmpaAbZrC.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/4GfkMLJXxfM0NvmpaAbZrC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279daa8703658e04eca6bacd11ef02d6b472dc6854da1921904f22f23d2c24ee. 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/5TtUrpN8twr8L9pjE92oNp.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/5TtUrpN8twr8L9pjE92oNp.
{"copyright_id":"0x6328c5adf1c484fbb493b05d05074810cf98e70b0b1b2c44dbb538389e03de00","isrc":"USUG12402083","name":"Ships That Don’t Come In","registered_at":"2026-06-04T09:26:02Z","spotify_id":"6wNtSoSzerVOo8fGKRLN7Q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6328c5adf1c484fbb493b05d05074810cf98e70b0b1b2c44dbb538389e03de00. 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/6wNtSoSzerVOo8fGKRLN7Q.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/6wNtSoSzerVOo8fGKRLN7Q.
Third Rock From The Sun (feat. Brooks & Dunn)
{"copyright_id":"0x8fe0458fad23280e84bc514becdeba735bb2221a635b9bcb2192ce2cdb06eba5","isrc":"USUG12402086","name":"Third Rock From The Sun (feat. Brooks & Dunn)","registered_at":"2026-06-04T10:20:39Z","spotify_id":"1tJqLiSIjsVcvtmMGtCmXA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe0458fad23280e84bc514becdeba735bb2221a635b9bcb2192ce2cdb06eba5. 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/1tJqLiSIjsVcvtmMGtCmXA.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/1tJqLiSIjsVcvtmMGtCmXA.
Prop Me Up Beside The Jukebox (If I Die) [feat. The Difftones]
{"copyright_id":"0x99ae490f3743fc60d1950a39f14f8745a9cf7b291dd9a7a0a71d536226f24aa4","isrc":"USUG12402087","name":"Prop Me Up Beside The Jukebox (If I Die) [feat. The Difftones]","registered_at":"2026-06-06T07:11:29Z","spotify_id":"5X9G3iIyegabYrQQLuzFIs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ae490f3743fc60d1950a39f14f8745a9cf7b291dd9a7a0a71d536226f24aa4. 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/5X9G3iIyegabYrQQLuzFIs.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/5X9G3iIyegabYrQQLuzFIs.
{"copyright_id":"0x1fa19e3b8f1af51205d74959ebeaebcf054b66f09acd8d76b0eb8aebb82b56fe","isrc":"USUG12402088","name":"Bigger Than The Beatles","registered_at":"2026-06-04T13:02:00Z","spotify_id":"3LkJ4WA6Y9DLkfnTQ4IKnf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa19e3b8f1af51205d74959ebeaebcf054b66f09acd8d76b0eb8aebb82b56fe. 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/3LkJ4WA6Y9DLkfnTQ4IKnf.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/3LkJ4WA6Y9DLkfnTQ4IKnf.
{"copyright_id":"0xe3eb9a4f4b1e0c0d310dac924ea3f0f425998fba59c41edb04025357c15f2757","isrc":"USUG12402089","name":"Honky Tonk Attitude","registered_at":"2026-06-05T19:00:29Z","spotify_id":"1rOFJd7kA2BBBnn6LjKip3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eb9a4f4b1e0c0d310dac924ea3f0f425998fba59c41edb04025357c15f2757. 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/1rOFJd7kA2BBBnn6LjKip3.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/1rOFJd7kA2BBBnn6LjKip3.
{"copyright_id":"0xa6c617b1d9fcbcd7ac113e75e8ddf1dcbc07d5e8dfb396d1dbe83d386b59c67d","isrc":"USUG12402090","name":"Is It Cold In Here","registered_at":"2026-06-08T07:41:29Z","spotify_id":"0DNFwSvMh6S92TZF3yGzyk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c617b1d9fcbcd7ac113e75e8ddf1dcbc07d5e8dfb396d1dbe83d386b59c67d. 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/0DNFwSvMh6S92TZF3yGzyk.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/0DNFwSvMh6S92TZF3yGzyk.
{"copyright_id":"0xe12746af272d22b555b74a6225f708d8b9cd7af7dc1f2ca0f9a763e56410b5e3","isrc":"USUG12402091","name":"Texas Size Heartache","registered_at":"2026-06-06T00:02:12Z","spotify_id":"47URQO0aQIA5sNThtfFbmQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12746af272d22b555b74a6225f708d8b9cd7af7dc1f2ca0f9a763e56410b5e3. 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/47URQO0aQIA5sNThtfFbmQ.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/47URQO0aQIA5sNThtfFbmQ.