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 0x8014480ff7b398e18cc68645b12f2b797fa3da123d5650e5fe5e05826bf12cbd. 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/3478e08f-7f7b-4058-9377-e6db30372df1.json and https://artists.proofprofile.net/proofs/artist/3478e08f-7f7b-4058-9377-e6db30372df1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x662478b0ab25a954e92437ec8e03b611a0fed71d950a334f9d27d076653d00e0","isrc":"GBKQU2436071","name":"Kindness Is No Longer Appreciated","registered_at":"2026-06-23T17:11:56Z","spotify_id":"16fhEGS6HEGUuUjh8rNZaS","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 0x662478b0ab25a954e92437ec8e03b611a0fed71d950a334f9d27d076653d00e0. 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/16fhEGS6HEGUuUjh8rNZaS.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/16fhEGS6HEGUuUjh8rNZaS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67e266203e00daddbd64945c649ad368026371ea0e78034555397636dc94963. 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/3MCPYqahOj51pTJOdIMOGw.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/3MCPYqahOj51pTJOdIMOGw.
{"copyright_id":"0xd2af7dba4e5b1e8dbff419bfd357022e5b59ff8da9194b053f79eea86d4dc001","isrc":"US83Z2465692","name":"Adagio - Taylan Remix","registered_at":"2026-06-24T19:18:28Z","spotify_id":"6EyRPCly0GHXjGiHjZW1pr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2af7dba4e5b1e8dbff419bfd357022e5b59ff8da9194b053f79eea86d4dc001. 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/6EyRPCly0GHXjGiHjZW1pr.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/6EyRPCly0GHXjGiHjZW1pr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7751c1c37a9e1e740bae89604d4a7b5791311f0e93eee280bfecc7f5b45ffbdd. 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/3h8eDmekPC9fr2jhs4Gr71.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/3h8eDmekPC9fr2jhs4Gr71.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f115002ba16802df9e557997bd0de2abeb55080d20962b52b7860e389d41ea5. 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/2NVeQf1HbBVZmoiEw7m943.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/2NVeQf1HbBVZmoiEw7m943.
{"copyright_id":"0xb8809eddf9f3198d1311a64a1668cbe397f529692dc643b9caa66b1a15fdb72b","isrc":"BEIR42100033","name":"The Sign","registered_at":"2026-06-27T17:48:10Z","spotify_id":"00lDeyHhCGoXuuGjfePyVK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8809eddf9f3198d1311a64a1668cbe397f529692dc643b9caa66b1a15fdb72b. 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/00lDeyHhCGoXuuGjfePyVK.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/00lDeyHhCGoXuuGjfePyVK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac1cf4bf543772cf8da3a495a138ba9043a7d665844b2d082d14eb96d83c6cb. 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/5kZzWLHvZ500ROSa3dNYrc.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/5kZzWLHvZ500ROSa3dNYrc.
{"copyright_id":"0xadb57bdaf3bf79f05b7af3716e28cf707b70ceaff16b19cf4d9db337f44cd765","isrc":"DEBE72200505","name":"Solar Symphony","registered_at":"2026-06-08T15:01:23Z","spotify_id":"78YC1Dbk3kiNBxrUDR7OzE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb57bdaf3bf79f05b7af3716e28cf707b70ceaff16b19cf4d9db337f44cd765. 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/78YC1Dbk3kiNBxrUDR7OzE.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/78YC1Dbk3kiNBxrUDR7OzE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7087795084c0672036be2a8b1b5ae370dd131295c2176047c8abb5341f7a75. 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/0bxd2sc5AUawK5FLVjLG0f.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/0bxd2sc5AUawK5FLVjLG0f.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0500767a897536c85bc4385af65c11c07570c6753d5251c4705848d025769c16. 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/5bRvBFNBudG19yIkB4I7Ee.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/5bRvBFNBudG19yIkB4I7Ee.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751c5c77cda8941c2b275f6d5e49358c05231ec24dde864530c68d5e3700086f. 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/0rPopbl9MmmdlvNvt5WRgo.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/0rPopbl9MmmdlvNvt5WRgo.
{"copyright_id":"0xebc1874c5c631f46c6b098c78034f29eb6b05dcd19aa2a704361cfa40cc0d6c4","isrc":"GBLV62118843","name":"Limba La","registered_at":"2026-06-04T15:41:10Z","spotify_id":"0DbzOtR6qoqGcgcaznOGS0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc1874c5c631f46c6b098c78034f29eb6b05dcd19aa2a704361cfa40cc0d6c4. 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/0DbzOtR6qoqGcgcaznOGS0.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/0DbzOtR6qoqGcgcaznOGS0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2fe594598a3d5d75e3b7ad629a4a2b13a0e924cccac0b189f10698c0e231911. 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/6z2l7WfdsYpPQnwavRbjPt.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/6z2l7WfdsYpPQnwavRbjPt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36025c0f1b6802ee56a4ea3094cd8745f6b18526725724db1da9d11309b642d. 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/5fCYrcd6T7JUl9N7T6505m.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/5fCYrcd6T7JUl9N7T6505m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f0d9b716b274af0d2a3a829baff308e4bfa5cd22f503098e25648d55cbe828. 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/5Z3QaccC3mXJ8npm2bvj8Y.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/5Z3QaccC3mXJ8npm2bvj8Y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937baf7d7859e4b94652f21323576de7dbe512a62851030423e5219aa105ad93. 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/0IMajUfY3zqCINczILtwq2.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/0IMajUfY3zqCINczILtwq2.
Night At The Circus / Starlight Lounge (Remixes)
{"copyright_id":"0xab62f01486294b9ca6d826fc92fde8a337f58f3dff431b385116534206ab7f69","isrc":"NLHR22100391","name":"Night At The Circus - Somelee Remix","registered_at":"2026-06-10T05:20:53Z","spotify_id":"5rupAFB73xrGS6yY2hxZUH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab62f01486294b9ca6d826fc92fde8a337f58f3dff431b385116534206ab7f69. 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/5rupAFB73xrGS6yY2hxZUH.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/5rupAFB73xrGS6yY2hxZUH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b224ca4e0f868638ed20f5826233d44b2569070f651398144b459a626be261. 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/56IQju3AhJHiFWBy4Vsybu.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/56IQju3AhJHiFWBy4Vsybu.
Cloudy Island - Death on the Balcony Remix