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 0xc8cd85e57a67d2b5b2d0ab8a883379481543902ed02e557ffd2dead267ce8775. 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/03657b1f-72bb-438e-b90c-b13d0dd8dce5.json and https://artists.proofprofile.net/proofs/artist/03657b1f-72bb-438e-b90c-b13d0dd8dce5.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 0xce935b475fc9555d180dd3bee3e9802328e51d31a1936108e40b01ec55dbdbb5. 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/1gFxypH5t60ZZJIzXT71Dp.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/1gFxypH5t60ZZJIzXT71Dp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5005ec446d6a9dc6a0444d5b1512fc2ec33fb8f9f2aebacc1573b4df5a3c3701. 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/1BPypDiUKhkLeLZ5aDcOcu.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/1BPypDiUKhkLeLZ5aDcOcu.
{"copyright_id":"0xa19ff0c8a4901543dc47362c32973d9d010825e76ed119f5521c5a2c8b1db6e9","isrc":"USA2P2030521","name":"Sunset - Extended Yoga Edit","registered_at":"2026-06-04T16:39:03Z","spotify_id":"1QtWBMMNjnYz7AZuIHC3to","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19ff0c8a4901543dc47362c32973d9d010825e76ed119f5521c5a2c8b1db6e9. 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/1QtWBMMNjnYz7AZuIHC3to.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/1QtWBMMNjnYz7AZuIHC3to.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce935b475fc9555d180dd3bee3e9802328e51d31a1936108e40b01ec55dbdbb5. 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/7tDCwiDQlz7di4VaZAZNz4.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/7tDCwiDQlz7di4VaZAZNz4.
{"copyright_id":"0xdfcab3936b49113f8aa4f41425112010d5d3ba9392e478a9df4717d7ca11b9df","isrc":"USA2P2041556","name":"Love Is - Young Jing Acoustic Edit","registered_at":"2026-06-10T21:47:56Z","spotify_id":"0MctJ8jp35TxP8LQ8JOEzI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcab3936b49113f8aa4f41425112010d5d3ba9392e478a9df4717d7ca11b9df. 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/0MctJ8jp35TxP8LQ8JOEzI.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/0MctJ8jp35TxP8LQ8JOEzI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984194f68229d63afc0ae33f3d14abb40ce170bd8793bfe789989910920a5c9d. 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/0FnfC3ZY2XJLHvQuHovW2r.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/0FnfC3ZY2XJLHvQuHovW2r.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c9e96e420706e3abc4b83524ba96377775ba0a6f561d1ef1ad96cbc4eef6ee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4P0DB09atofjy7z66DB7Zk.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/4P0DB09atofjy7z66DB7Zk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d869ee1999f7420da3c94813910d269d8deaa870faf483cfda012a3e0972f8f. 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/6fWVyjcxIPDbZRznnvILct.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/6fWVyjcxIPDbZRznnvILct.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a43b3dd04b88db1952a1c8a08cf3b44e07c70fc266e50f2869d3b25f9708480. 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/4mfbW1vBNlemgab1kB89Kp.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/4mfbW1vBNlemgab1kB89Kp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecfd1f6f1d2113f459627362845f1d7a70ef5e4fee19e20019add3f8298abe6. 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/3mQDAaDpU9TFz708Ce3DHx.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/3mQDAaDpU9TFz708Ce3DHx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb718119dbe6ef04fdfa68d5caac81c8c7063d3d66fee1dc5e241b7b1adbf7ee8. 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/2MHpoFEVUBjbzMaujI49qU.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/2MHpoFEVUBjbzMaujI49qU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7047b6a69a3a9e7a7b1d3fe94b4dd855a8e00edd20863b0fcc9f30c622704f6. 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/6JpQ6l2uA82tSRgh2b35ti.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/6JpQ6l2uA82tSRgh2b35ti.
Yoga Music Mix - 60 minutes workout: Mix 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10977f6de04ad663fe924cd82254377486a6997f1f88122db13afe6f6170793. 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/1MpGcei594m0b0Edu9Otfh.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/1MpGcei594m0b0Edu9Otfh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4493dc8c38ba96018972c3557b420056fb19b9b9670bca06ea48da0533e80e. 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/38npExp8uEXwlwubPrHPG9.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/38npExp8uEXwlwubPrHPG9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86573d47d478c9ddeccb6c7a651f5c217da53a12b95043dccacaee54e403ae22. 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/5QMaB40yXP7Hwtr0EAY1PD.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/5QMaB40yXP7Hwtr0EAY1PD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55b8523d71aa03b28b819a790aa3867f5dd88a84bb478fb8fa9e42cbdb13264. 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/39Sa8kv0vMIzM59CLjG2YP.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/39Sa8kv0vMIzM59CLjG2YP.
{"copyright_id":"0x11bd9ae8a711cd20161ce4edf8f8f7b4e780383d920bc5ad17b2141bd71c8978","isrc":"USA2P2102376","name":"Burning Man","registered_at":"2026-06-06T21:52:38Z","spotify_id":"76kw7qGmQVPcoKOnscysNf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bd9ae8a711cd20161ce4edf8f8f7b4e780383d920bc5ad17b2141bd71c8978. 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/76kw7qGmQVPcoKOnscysNf.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/76kw7qGmQVPcoKOnscysNf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff862dec24b66f251e49133a2991fa2d3970d022a40788f3f6a377c2964f089e. 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/0SFkjO1rDK5ZvSr43eaKEJ.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/0SFkjO1rDK5ZvSr43eaKEJ.
{"copyright_id":"0xdfcab3936b49113f8aa4f41425112010d5d3ba9392e478a9df4717d7ca11b9df","isrc":"USA2P2041556","name":"Love Is - Young Jing Acoustic Edit","registered_at":"2026-06-10T21:47:56Z","spotify_id":"27GMEz2IJHQsFGWqc3W3nx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcab3936b49113f8aa4f41425112010d5d3ba9392e478a9df4717d7ca11b9df. 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/27GMEz2IJHQsFGWqc3W3nx.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/27GMEz2IJHQsFGWqc3W3nx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984194f68229d63afc0ae33f3d14abb40ce170bd8793bfe789989910920a5c9d. 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/4vvTBt9duyjE3Q5HyAmFjb.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/4vvTBt9duyjE3Q5HyAmFjb.
{"copyright_id":"0xa19ff0c8a4901543dc47362c32973d9d010825e76ed119f5521c5a2c8b1db6e9","isrc":"USA2P2030521","name":"Sunset - Extended Yoga Edit","registered_at":"2026-06-04T16:39:03Z","spotify_id":"6GcEejQCnOAtlfW3jxceUP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19ff0c8a4901543dc47362c32973d9d010825e76ed119f5521c5a2c8b1db6e9. 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/6GcEejQCnOAtlfW3jxceUP.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/6GcEejQCnOAtlfW3jxceUP.
{"copyright_id":"0x6fc83cca06747e191d9192e4b1aabe38c9e7dbb38334ad0af4ac75ec3cc3247e","isrc":"USA2P2029681","name":"Sunset - Instrumental","registered_at":"2026-06-08T07:25:06Z","spotify_id":"0PMfKN03HNFMpa3nrd9kL7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc83cca06747e191d9192e4b1aabe38c9e7dbb38334ad0af4ac75ec3cc3247e. 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/0PMfKN03HNFMpa3nrd9kL7.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/0PMfKN03HNFMpa3nrd9kL7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d869ee1999f7420da3c94813910d269d8deaa870faf483cfda012a3e0972f8f. 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/4REyJ7xr7h9HS1URLzhmcP.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/4REyJ7xr7h9HS1URLzhmcP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16eaf55c41d5964b8116f0f4639fc0d69232c370bb2afaf4c13c5dd6fc7144b. 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/6tiAaGahi9jdjJya9duaup.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/6tiAaGahi9jdjJya9duaup.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984194f68229d63afc0ae33f3d14abb40ce170bd8793bfe789989910920a5c9d. 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/4AUf9w0YeqT1rujM4N5INI.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/4AUf9w0YeqT1rujM4N5INI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19ff0c8a4901543dc47362c32973d9d010825e76ed119f5521c5a2c8b1db6e9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7AVJ01NFnCINLCt0g0y6lO.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/7AVJ01NFnCINLCt0g0y6lO.