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 0x96bb7b142fa9a6e7aec73dabc5d074a23a64039edce8f0a0019006d2771a6ad8. 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/bb53fc6a-7ce9-4e13-a84b-c858a13010bb.json and https://artists.proofprofile.net/proofs/artist/bb53fc6a-7ce9-4e13-a84b-c858a13010bb.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 0x0fc08e8ef632f30f01252b40c4ca0a54a31a1eb9ddb5522b12a45ac02cb5bfba. 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/2pA4ip3VIEVcIa3qE02oAX.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/2pA4ip3VIEVcIa3qE02oAX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd6e5c6c2b54352d4c4bfe0f6a96d778e6c60580cf0a60c262b923d785d339b. 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/2IDaot6HBRmqldvBjCp0iA.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/2IDaot6HBRmqldvBjCp0iA.
{"copyright_id":"0xa02991a60ab79e819a9bc53096eaaea3c36c9edec24c76d629245271aa67d93a","isrc":"USUM71416307","name":"Electric Love","registered_at":"2026-06-01T03:18:08Z","spotify_id":"2GiJYvgVaD2HtM8GqD9EgQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02991a60ab79e819a9bc53096eaaea3c36c9edec24c76d629245271aa67d93a. 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/2GiJYvgVaD2HtM8GqD9EgQ.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/2GiJYvgVaD2HtM8GqD9EgQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b44a3b3f41a34d9c204f3484d945a860c18a1f41d7e192288de129283bcf98. 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/4AewKenHXKBt643p473xCk.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/4AewKenHXKBt643p473xCk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea74b7918760ca785372be571941e69a5f7ca1ec064c33ccf1430b5c3eaad997. 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/03YZnK3XQWKpvo9TyNZzXf.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/03YZnK3XQWKpvo9TyNZzXf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12966d1135efbf1b24ec0e49737ee3699e5eb56cb9f02a6d2486d0f323bb41d2. 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/5ho74ZlMvEbyhFutCd8SGg.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/5ho74ZlMvEbyhFutCd8SGg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf32dc83b45b1e7255613ad397aaaa95685f08be08d7ad489332e55360df299b. 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/1Dr5JexwA15wmKe7Y7maA9.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/1Dr5JexwA15wmKe7Y7maA9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bc9c4c8ff5d75fb33c638e248fc567de900295f6048f76bcc51086bd1b8845. 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/03v70ZBxmcPX3RWAZMzqaW.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/03v70ZBxmcPX3RWAZMzqaW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c30a8a7923b410dcb1206cb1c43e0bb59145bc727974036cdb1c32df712fe0a. 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/62ZXL1CWLJDiDWUZUhfLfU.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/62ZXL1CWLJDiDWUZUhfLfU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62464586f523590c04e88542c672d23a84b196a0a9eb6c2bb6a727c692a3b740. 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/35GS3Vh3ouARXMpsmZeXJy.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/35GS3Vh3ouARXMpsmZeXJy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9ac095619f56e7707617570c056819fffd5e59ea0d67d405bcd060bab33656. 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/1huRm0I1QxVb1pJziyCSRh.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/1huRm0I1QxVb1pJziyCSRh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02991a60ab79e819a9bc53096eaaea3c36c9edec24c76d629245271aa67d93a. 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/6IJDLuGYcp8kFIb66k6CMU.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/6IJDLuGYcp8kFIb66k6CMU.
{"copyright_id":"0x0fc08e8ef632f30f01252b40c4ca0a54a31a1eb9ddb5522b12a45ac02cb5bfba","isrc":"USUM71413949","name":"10,000 Emerald Pools","registered_at":"2026-06-01T10:47:15Z","spotify_id":"3rlc8rO0pVaxSCwEq9vv8B","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc08e8ef632f30f01252b40c4ca0a54a31a1eb9ddb5522b12a45ac02cb5bfba. 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/3rlc8rO0pVaxSCwEq9vv8B.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/3rlc8rO0pVaxSCwEq9vv8B.
{"copyright_id":"0xa02991a60ab79e819a9bc53096eaaea3c36c9edec24c76d629245271aa67d93a","isrc":"USUM71416307","name":"Electric Love","registered_at":"2026-06-01T03:18:06Z","spotify_id":"7xSgWsqhfZ6Mw80QHRJCHV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02991a60ab79e819a9bc53096eaaea3c36c9edec24c76d629245271aa67d93a. 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/7xSgWsqhfZ6Mw80QHRJCHV.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/7xSgWsqhfZ6Mw80QHRJCHV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02991a60ab79e819a9bc53096eaaea3c36c9edec24c76d629245271aa67d93a. 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/0d0vC9s5wZtpr7bsqCY1ET.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/0d0vC9s5wZtpr7bsqCY1ET.
{"copyright_id":"0x0fc08e8ef632f30f01252b40c4ca0a54a31a1eb9ddb5522b12a45ac02cb5bfba","isrc":"USUM71413949","name":"10,000 Emerald Pools","registered_at":"2026-06-01T10:47:15Z","spotify_id":"6PkiJcoGxxnIeJQsMFtE3D","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc08e8ef632f30f01252b40c4ca0a54a31a1eb9ddb5522b12a45ac02cb5bfba. 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/6PkiJcoGxxnIeJQsMFtE3D.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/6PkiJcoGxxnIeJQsMFtE3D.
God Save Our Young Blood (with Lana Del Rey)
{"copyright_id":"0x8d81f5f681f82dec38e00777e41f9bcda978bdfbc28c8cf07e9164eb8a80a4ad","isrc":"USUM71710700","name":"God Save Our Young Blood (with Lana Del Rey)","registered_at":"2026-06-04T16:39:53Z","spotify_id":"69bW8sXMYTa2iwfoRyZT5Y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d81f5f681f82dec38e00777e41f9bcda978bdfbc28c8cf07e9164eb8a80a4ad. 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/69bW8sXMYTa2iwfoRyZT5Y.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/69bW8sXMYTa2iwfoRyZT5Y.
{"copyright_id":"0x1de53f608ba9ab2920055da253192e53c35e989bd3dc1eb1357d8f7096aff7fd","isrc":"USUM71604468","name":"Free - BØRNS X Tommy English Remix","registered_at":"2026-06-26T11:51:09Z","spotify_id":"2vEMCSM2E7gN3caKWhsbsh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de53f608ba9ab2920055da253192e53c35e989bd3dc1eb1357d8f7096aff7fd. 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/2vEMCSM2E7gN3caKWhsbsh.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/2vEMCSM2E7gN3caKWhsbsh.