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 0x77f2b7249dd25d6baa2a9971b8beca2e98354ef5e724428aae06159e36673251. 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/fafae8e4-fafb-47b5-90a0-6fed91e8ea9b.json and https://artists.proofprofile.net/proofs/artist/fafae8e4-fafb-47b5-90a0-6fed91e8ea9b.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 0x8f50eb8cad666bfb736d728720e6f1a47f0a9197b599306d0617554c537f7083. 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/25cIB41JJmVhdQtmVXwB6L.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/25cIB41JJmVhdQtmVXwB6L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345812978ad4207ee07452e529ae714f30b96a25c976696bbdd915640d8b749e. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-02T22:12:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6KeuEiDlKfRVWTF1tmCtSL.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/6KeuEiDlKfRVWTF1tmCtSL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6935f8e4832d55fcb6803a502d7558db00e34e49ee97436854c6d419634011. 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/0xz0O4CYQqtITLNFoNY5nQ.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/0xz0O4CYQqtITLNFoNY5nQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345812978ad4207ee07452e529ae714f30b96a25c976696bbdd915640d8b749e. 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/5GuPltT1uMzPD971s8thk4.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/5GuPltT1uMzPD971s8thk4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ff8750d7c76a0c4aa2145e183b7f90b686892215f0425ca508381337191cda. 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/0Tk3EEE8mCTb8VaS5Phqc0.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/0Tk3EEE8mCTb8VaS5Phqc0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ff8750d7c76a0c4aa2145e183b7f90b686892215f0425ca508381337191cda. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6iebU3n4sGcFUAbtLmzRvJ.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/6iebU3n4sGcFUAbtLmzRvJ.
{"copyright_id":"0x31db3ee2ca5d93e684f3ea28c30bb6dbe32a7f7d1b3763e521f63ae6720149d2","isrc":"USZ4V2100203","name":"Welcome To The People","registered_at":"2026-06-01T12:14:38Z","spotify_id":"4O3APpGNhOldqDsPF8IaS5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31db3ee2ca5d93e684f3ea28c30bb6dbe32a7f7d1b3763e521f63ae6720149d2. 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/4O3APpGNhOldqDsPF8IaS5.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/4O3APpGNhOldqDsPF8IaS5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c1cbf77902b01b5be6ba95f9f5e18412eb155157711598f3453673f77e2b7a. 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/3i7BUiRkdAH6mMOQw35Jkp.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/3i7BUiRkdAH6mMOQw35Jkp.
{"copyright_id":"0x77656f07926083e4703f9b1c813bf6d7049ad10e966917b964d30d0be59c9ca9","isrc":"USZ4V2100243","name":"Welcome To The People - Baltra Remix","registered_at":"2026-06-04T16:15:27Z","spotify_id":"3QRji4m3jZKoJHHDfYEvFf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77656f07926083e4703f9b1c813bf6d7049ad10e966917b964d30d0be59c9ca9. 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/3QRji4m3jZKoJHHDfYEvFf.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/3QRji4m3jZKoJHHDfYEvFf.
{"copyright_id":"0x31db3ee2ca5d93e684f3ea28c30bb6dbe32a7f7d1b3763e521f63ae6720149d2","isrc":"USZ4V2100203","name":"Welcome To The People","registered_at":"2026-06-01T12:14:38Z","spotify_id":"1CvrCOlts7BF1hmf2Ucc1R","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31db3ee2ca5d93e684f3ea28c30bb6dbe32a7f7d1b3763e521f63ae6720149d2. 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/1CvrCOlts7BF1hmf2Ucc1R.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/1CvrCOlts7BF1hmf2Ucc1R.
{"copyright_id":"0x93a393058a210f716dfdd0b1055bc1617a0e0d4ab855a86a92469244068fc346","isrc":"USZ4V2200102","name":"Can You Feel It - Luttrell Remix","registered_at":"2026-06-07T17:17:35Z","spotify_id":"5MsqpBVGxX0sk0yjTs4cLq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a393058a210f716dfdd0b1055bc1617a0e0d4ab855a86a92469244068fc346. 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/5MsqpBVGxX0sk0yjTs4cLq.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/5MsqpBVGxX0sk0yjTs4cLq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a70b38673677df90048ba326a367661c532ce06702adabb6a87373dfce6a572. 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/0hKa1iXJRQMcpMELUojgTI.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/0hKa1iXJRQMcpMELUojgTI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a3e4b43dbf6fe18688593fc50cea10ac677a9b672bb636999502f9d517be24. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7lyyCJzXdxZJcXCvU8yVtf.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/7lyyCJzXdxZJcXCvU8yVtf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9298db629d48fed9103cf404ecf04487f4324f138244d89ccdf3bb06071f66a. 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/0VxHQF5EEyNNd8L8eeXXZ7.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/0VxHQF5EEyNNd8L8eeXXZ7.
Lonely Together - (feat. Rita Ora) Jaded Remix
{"copyright_id":"0x2b065ced23c1e45410ca02fe771d1043dfa1a3d6f36457cd3ea08c0998fdb9cf","isrc":"SE5R71700142","name":"Lonely Together - (feat. Rita Ora) Jaded Remix","registered_at":"2026-06-06T12:21:23Z","spotify_id":"1X6GT7mTCpvfsqIGjgrpP3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b065ced23c1e45410ca02fe771d1043dfa1a3d6f36457cd3ea08c0998fdb9cf. 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/1X6GT7mTCpvfsqIGjgrpP3.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/1X6GT7mTCpvfsqIGjgrpP3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f428ca7a2f291a129e0d64cba7a2649cd69daf24080fe9d918be8f8f00db06. 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/2Di28m2wnrA19nobVT3t5k.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/2Di28m2wnrA19nobVT3t5k.
Bass House Anthems: Best of 2019 (Presented by Spinnin' Records)
{"copyright_id":"0xc665c64cd2e4fdeb321d5ea741643792d9b728687e4e7bfafcee6c8d33da0620","isrc":"USZ4V2400063","name":"All For You - Westend Remix","registered_at":"2026-06-06T11:16:32Z","spotify_id":"2bR5Zu8IgFhhIlBXvpXeKG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc665c64cd2e4fdeb321d5ea741643792d9b728687e4e7bfafcee6c8d33da0620. 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/2bR5Zu8IgFhhIlBXvpXeKG.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/2bR5Zu8IgFhhIlBXvpXeKG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f81f43111d078f29c5ff8b146a1a97be8a52477dbf57710083677bc8b178e4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5JXChRRc1IkGbkmIMovQKH.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/5JXChRRc1IkGbkmIMovQKH.
{"copyright_id":"0x57ea6d3cef3734044ee4b1581f5eefe754263fce5eeeb56024f2a6c49078634f","isrc":"USZ4V2400147","name":"Sound Of The Drums - Calussa VIP Mix","registered_at":"2026-06-08T12:39:31Z","spotify_id":"1b8SCvxOPUyn9rAvNtIpS4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ea6d3cef3734044ee4b1581f5eefe754263fce5eeeb56024f2a6c49078634f. 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/1b8SCvxOPUyn9rAvNtIpS4.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/1b8SCvxOPUyn9rAvNtIpS4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d417575364e3fb7a4b56a7a6a2aa0feb857c21b0e4089da699528d058ff113. 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/0wtkDWUmdzCHl11hsU9xth.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/0wtkDWUmdzCHl11hsU9xth.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d417575364e3fb7a4b56a7a6a2aa0feb857c21b0e4089da699528d058ff113. 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/4s538QEQhTSOJGnasd1FAZ.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/4s538QEQhTSOJGnasd1FAZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f81f43111d078f29c5ff8b146a1a97be8a52477dbf57710083677bc8b178e4. 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/3SFqCbwxzN2ykIjoyWhU3x.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/3SFqCbwxzN2ykIjoyWhU3x.