{"copyright_id":"0xc1b7eaf5dffaab31c66c3017d5e815f3dfe5d1f5604af2bc69ddbd2ee0c2fb8e","name":"Cannonball Adderley Quartet","registered_at":"2026-06-12T08:15:22Z","symbol":"NIM0239187","token_address":"0x522e4af174d2d2281d39b72db482dff16d7084a8","type":"artist","uuid":"ba0fea98-fbdf-45fe-8277-de8b9f4cced3"}
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 0xc1b7eaf5dffaab31c66c3017d5e815f3dfe5d1f5604af2bc69ddbd2ee0c2fb8e. 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/ba0fea98-fbdf-45fe-8277-de8b9f4cced3.json and https://artists.proofprofile.net/proofs/artist/ba0fea98-fbdf-45fe-8277-de8b9f4cced3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xed90ec76346362916daa65b2b29ff132f2fe8fcfb8b60460233f6d4bebf5d668","isrc":"USCA20200406","name":"If This Isn't Love","registered_at":"2026-06-06T22:12:56Z","spotify_id":"4WrFf0DMuq3LbpOf20wkVP","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 0xed90ec76346362916daa65b2b29ff132f2fe8fcfb8b60460233f6d4bebf5d668. 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/4WrFf0DMuq3LbpOf20wkVP.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/4WrFf0DMuq3LbpOf20wkVP.
{"copyright_id":"0xbecafcc3e704632c70533c26831dd2ccde4772684b2356ec8d96e871667f0805","isrc":"USCA20101288","name":"I Guess I'll Hang My Tears Out To Dry","registered_at":"2026-06-04T15:04:09Z","spotify_id":"3uPR8dQXnM4DhBFfiBEDmh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecafcc3e704632c70533c26831dd2ccde4772684b2356ec8d96e871667f0805. 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/3uPR8dQXnM4DhBFfiBEDmh.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/3uPR8dQXnM4DhBFfiBEDmh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dce321529808d252fa01386d753b6fe37338a9cb0fb978629ff904f155a473e. 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/5Wqkv4y9GsBuoL7t6DWsX0.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/5Wqkv4y9GsBuoL7t6DWsX0.
{"copyright_id":"0xcd441700af31acfe3fb817ef01c683f194bf69965d8ad2e6d9acfb9f2989294f","isrc":"USCA20200408","name":"I've Told Ev'ry Little Star","registered_at":"2026-06-05T05:31:18Z","spotify_id":"2wfLEFTytRTwmMgSDlOrap","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd441700af31acfe3fb817ef01c683f194bf69965d8ad2e6d9acfb9f2989294f. 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/2wfLEFTytRTwmMgSDlOrap.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/2wfLEFTytRTwmMgSDlOrap.
{"copyright_id":"0xee42d7fd1f018297702852ad86905a3a8d37f30b170cf674626404b4ef2abafa","isrc":"USCA20200409","name":"Barefoot Sunday Blues","registered_at":"2026-06-04T16:23:47Z","spotify_id":"4n5AUkvieP9NglLITjihFH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee42d7fd1f018297702852ad86905a3a8d37f30b170cf674626404b4ef2abafa. 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/4n5AUkvieP9NglLITjihFH.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/4n5AUkvieP9NglLITjihFH.
{"copyright_id":"0x549fbd27d437fd67fae10ccd7c19b2bf88c5ecd0326f7708acda4788847da6ca","isrc":"USCA20200410","name":"Poor Butterfly","registered_at":"2026-06-05T11:41:27Z","spotify_id":"2GOnuiV0bi8oOy3eNgByYw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549fbd27d437fd67fae10ccd7c19b2bf88c5ecd0326f7708acda4788847da6ca. 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/2GOnuiV0bi8oOy3eNgByYw.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/2GOnuiV0bi8oOy3eNgByYw.
{"copyright_id":"0x4395b721fa1cf0c4e4f14f46cc18fc0caa49307f50af649a0ad52b94e4babbff","isrc":"USCA20200411","name":"I Remember You","registered_at":"2026-06-17T20:49:45Z","spotify_id":"4oIp120RZnhcS2t23wNI7l","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4395b721fa1cf0c4e4f14f46cc18fc0caa49307f50af649a0ad52b94e4babbff. 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/4oIp120RZnhcS2t23wNI7l.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/4oIp120RZnhcS2t23wNI7l.
{"copyright_id":"0xa181f3f6cfcab474be3c32e01b8b96cce90d225b64e433973706f93cd46a31dd","isrc":"USCA20200412","name":"Barefoot Sunday Blues - Alternate Take","registered_at":"2026-06-25T16:39:18Z","spotify_id":"29ll0fLXYoYvKVLNpvURtB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa181f3f6cfcab474be3c32e01b8b96cce90d225b64e433973706f93cd46a31dd. 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/29ll0fLXYoYvKVLNpvURtB.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/29ll0fLXYoYvKVLNpvURtB.
{"copyright_id":"0xbecafcc3e704632c70533c26831dd2ccde4772684b2356ec8d96e871667f0805","isrc":"USCA20101288","name":"I Guess I'll Hang My Tears Out To Dry","registered_at":"2026-06-04T15:04:09Z","spotify_id":"6MkT8jvHvdo49gz1U7PJlE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecafcc3e704632c70533c26831dd2ccde4772684b2356ec8d96e871667f0805. 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/6MkT8jvHvdo49gz1U7PJlE.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/6MkT8jvHvdo49gz1U7PJlE.