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 0xd66fec826963eabcb0fbc20377fa68b2f21923d40a012bd85465cb7af9ae55b1. 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/86e38c77-2a24-451f-a3df-7cdafd1f4517.json and https://artists.proofprofile.net/proofs/artist/86e38c77-2a24-451f-a3df-7cdafd1f4517.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 0x446b2076e1ff4c707cfe45545b3e1d3354f733eac30fdac2635648a5198bfa09. 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/1tPvXyWwJUM9G903sjxNYa.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/1tPvXyWwJUM9G903sjxNYa.
{"copyright_id":"0x2b3f5fb20be8e7f8ba9be71411a569291c06687b1fa9711cdd2b2a930468abdb","isrc":"USCM50300176","name":"Intro (Juvenile/Juve The Great)","registered_at":"2026-06-22T21:59:35Z","spotify_id":"6B7i5npz3nBhb66qBOOodc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3f5fb20be8e7f8ba9be71411a569291c06687b1fa9711cdd2b2a930468abdb. 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/6B7i5npz3nBhb66qBOOodc.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/6B7i5npz3nBhb66qBOOodc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fc377465f4c8fe57cf2183381f78a2a21e6243440dcc4581649a6cc13f32c8. 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/5WXtKPaUn0rgwtv4sGoCUt.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/5WXtKPaUn0rgwtv4sGoCUt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa361df7bfc6c11217c5dd9d0747a228419b8c40ce8b8149c7aed2019a85e55a9. 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/0QaZtz8hR7JYyjFvorvC3K.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/0QaZtz8hR7JYyjFvorvC3K.
{"copyright_id":"0xdd36a6ea98190ec23871fe86e1fefb000e8c4760bbec80ce145b9b02c32503dd","isrc":"USCM50300179","name":"Outside - Skit","registered_at":"2026-06-24T08:02:46Z","spotify_id":"7ovaExyprZ5Of3vJpFYyDE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd36a6ea98190ec23871fe86e1fefb000e8c4760bbec80ce145b9b02c32503dd. 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/7ovaExyprZ5Of3vJpFYyDE.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/7ovaExyprZ5Of3vJpFYyDE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc6ea8c75c68e6b2c965145041cf682d35842ae42909bc864215c30f229b234. 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/43bNn20mXWprgIvDmzeISc.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/43bNn20mXWprgIvDmzeISc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bfb173cc77b30010cd5bc209317e3f9390d9bb1b1c356d81ab5791513d2654. 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/5nlM8VscnQCbmny9S8IYA3.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/5nlM8VscnQCbmny9S8IYA3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8431497e7667d84678c1dd6b560bd32ac27c25739c5fb402457930e8e3dd8f39. 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/6yJxNAJkzVEobMklG0mdLr.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/6yJxNAJkzVEobMklG0mdLr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36a41146626122dd43a53a201789db2f4dedca41b2a7e790c8e9309cf4b48d2. 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/1TpZwINMh0YEKTuvYHG300.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/1TpZwINMh0YEKTuvYHG300.
{"copyright_id":"0xe41df971a70cf18268513c07a7bac1087f77ae92fc09b1fac3653c9ee9d120bc","isrc":"USCM50300184","name":"Lil Daddy","registered_at":"2026-06-18T11:19:10Z","spotify_id":"6RZkxuXmmna2vwcJtsEbo4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41df971a70cf18268513c07a7bac1087f77ae92fc09b1fac3653c9ee9d120bc. 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/6RZkxuXmmna2vwcJtsEbo4.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/6RZkxuXmmna2vwcJtsEbo4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19faf35f982d904bb77bd281bd5debf33d29d020eea611f7e9b149b17e61396. 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/68M7UmepzR8MtBgY94IzYr.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/68M7UmepzR8MtBgY94IzYr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399b03121a0bdb4541daf788f322d289799b8da9c2e1fb58b49206b45c182983. 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/0wey7qp6np9yNT8CiOHATg.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/0wey7qp6np9yNT8CiOHATg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbef340377f4b451db484f0144182f3b3094e343614c7f4a13fa0337fdde5d8. 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/7cuYjVBaYVDd1o3UVCQ56C.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/7cuYjVBaYVDd1o3UVCQ56C.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7747868d9cce17eac00a23ca1171b96e13948927bc5167defdf1b94940518e. 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/3FpUeSMlGHYsQ8nSiL3MGu.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/3FpUeSMlGHYsQ8nSiL3MGu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f30e4718959d4b10a48d20a0b6351cbbea57705a86a80baa779090831bd9c2. 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/6o3zGqgcsMaAcai0Lk5Uhl.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/6o3zGqgcsMaAcai0Lk5Uhl.
{"copyright_id":"0xfc79997344f0dd0ee1637f9ec0ea504d9e7b63e5bc3db4ba3165cd6060d37304","isrc":"USCM50300192","name":"Slow Motion","registered_at":"2026-06-01T11:19:00Z","spotify_id":"6ihObRBTB8xdSH2mlERtOX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc79997344f0dd0ee1637f9ec0ea504d9e7b63e5bc3db4ba3165cd6060d37304. 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/6ihObRBTB8xdSH2mlERtOX.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/6ihObRBTB8xdSH2mlERtOX.
Emerald / Burgundy (feat. Juvenile & Juicy J)
{"copyright_id":"0xfaeefb0486fa0c741f1a427c20b32616ee37050881b2b9e18dbf5cc9a970efcf","isrc":"USRC11901573","name":"Emerald / Burgundy (feat. Juvenile & Juicy J)","registered_at":"2026-06-04T16:08:15Z","spotify_id":"5dQ2TLdNyVVrJrdj9Qs8mz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaeefb0486fa0c741f1a427c20b32616ee37050881b2b9e18dbf5cc9a970efcf. 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/5dQ2TLdNyVVrJrdj9Qs8mz.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/5dQ2TLdNyVVrJrdj9Qs8mz.
{"copyright_id":"0x155eba7524029fcb21d9338697e4f20724afa66a0cc52da211dcba7b7db37b7c","isrc":"USTV10400353","name":"Salt Shaker Extended Remix","registered_at":"2026-06-05T16:02:14Z","spotify_id":"5DEiT3OdrKXybwtvDcHrLT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155eba7524029fcb21d9338697e4f20724afa66a0cc52da211dcba7b7db37b7c. 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/5DEiT3OdrKXybwtvDcHrLT.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/5DEiT3OdrKXybwtvDcHrLT.
{"copyright_id":"0x63ae5ce36ba54d5c4a1c7da7ed05a0f18fe5efc15ee130d857da42ddb2b45599","isrc":"USTV10400352","name":"Salt Shaker Remix","registered_at":"2026-06-07T06:26:40Z","spotify_id":"4X3rWuyvmsu4UcqiMee2as","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ae5ce36ba54d5c4a1c7da7ed05a0f18fe5efc15ee130d857da42ddb2b45599. 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/4X3rWuyvmsu4UcqiMee2as.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/4X3rWuyvmsu4UcqiMee2as.
{"copyright_id":"0xfc79997344f0dd0ee1637f9ec0ea504d9e7b63e5bc3db4ba3165cd6060d37304","isrc":"USCM50300192","name":"Slow Motion","registered_at":"2026-06-01T11:18:58Z","spotify_id":"1DPBINsfGFE2jsO0zJzqsw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc79997344f0dd0ee1637f9ec0ea504d9e7b63e5bc3db4ba3165cd6060d37304. 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/1DPBINsfGFE2jsO0zJzqsw.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/1DPBINsfGFE2jsO0zJzqsw.
{"copyright_id":"0xd040a8b5cbd79a9ae601e62ba981b637f16c07d0dd41cd8df6e62fa8b2f0d28d","isrc":"USTV10400345","name":"Slow Motion [Remix]","registered_at":"2026-06-08T18:37:26Z","spotify_id":"2emv7E4xpJh1uanArJu1qV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd040a8b5cbd79a9ae601e62ba981b637f16c07d0dd41cd8df6e62fa8b2f0d28d. 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/2emv7E4xpJh1uanArJu1qV.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/2emv7E4xpJh1uanArJu1qV.
{"copyright_id":"0x2abfb7b224b1bac7f3bd2323eef82ddcb282137be9e7b4c9550ce665bc5ccc3d","isrc":"USUYG1288697","name":"Picture Perfect","registered_at":"2026-06-17T20:54:38Z","spotify_id":"7sW84Vekf20lPe3axDV6lJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abfb7b224b1bac7f3bd2323eef82ddcb282137be9e7b4c9550ce665bc5ccc3d. 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/7sW84Vekf20lPe3axDV6lJ.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/7sW84Vekf20lPe3axDV6lJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57474c9fa91519f89a2ee1b26a2e7661255b7aeea1b7080e6082210f887f0821. 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/33pmDffCUTrrcSJhOpAS9Y.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/33pmDffCUTrrcSJhOpAS9Y.