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 0xa509f2ed23da5dcf8f6b08a34f8607d8bcf861e5115aa1df99980da3ee083f8a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32fc233d-1b81-4520-9264-4f2690258ae6.json and https://artists.proofprofile.net/proofs/artist/32fc233d-1b81-4520-9264-4f2690258ae6.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 0x9df74c1fca05ec4b7f8a3154f210fb82c54360d0883f3a77df187589d4852520. 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/3XOsrSiGaFCKyPJv1uKqsH.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/3XOsrSiGaFCKyPJv1uKqsH.
{"copyright_id":"0xacd0ecc02e0e0b818fdf5065a9ca4ae2fb856df49a7deeb22c7786e8827044d1","isrc":"NL1LE2403526","name":"As Long as it’s in the Right Direction","registered_at":"2026-06-06T04:03:35Z","spotify_id":"7db5RVQTBADHlaCopNcFUp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd0ecc02e0e0b818fdf5065a9ca4ae2fb856df49a7deeb22c7786e8827044d1. 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/7db5RVQTBADHlaCopNcFUp.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/7db5RVQTBADHlaCopNcFUp.
{"copyright_id":"0xf7823de16811454d2e1a4958c1da8fcc96ffe7d7d0ab4a9e0ac1a4e1e184bd84","isrc":"CAN112100368","name":"just come home","registered_at":"2026-06-07T19:45:57Z","spotify_id":"1MKBud0freD15GSMn3uwS8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7823de16811454d2e1a4958c1da8fcc96ffe7d7d0ab4a9e0ac1a4e1e184bd84. 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/1MKBud0freD15GSMn3uwS8.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/1MKBud0freD15GSMn3uwS8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ba75b0cb2d1ea36ebe98d75f4b65e65e1299f9130f45e1576c89269aab439b. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4VDi31bfTUzqP42vrdWlT6.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/4VDi31bfTUzqP42vrdWlT6.
Where's My Love - The Field Tapes & Ezzy Remix
Where's My Love (The Field Tapes & Ezzy Remix)
{"copyright_id":"0xbdb3359b458e7cc95ce95fa0fd10cf30469c6eff30b1704029bc6bac2e61cbed","isrc":"CAN112100628","name":"Where's My Love - The Field Tapes & Ezzy Remix","registered_at":"2026-06-07T14:36:09Z","spotify_id":"5u1TFB83vLvIKY9YlrTgsG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb3359b458e7cc95ce95fa0fd10cf30469c6eff30b1704029bc6bac2e61cbed. 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/5u1TFB83vLvIKY9YlrTgsG.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/5u1TFB83vLvIKY9YlrTgsG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b60878b864d6fb59035e949467e424bd78e873347071843321a8a9302c4224. 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/2217ssMvgWOyaZmvTWP9IA.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/2217ssMvgWOyaZmvTWP9IA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ed04ba7e3347d4a08d1c7e4d11e64961eb1ab159de7038159098ee0911911c. 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/1y7ddkTYqIMX0EgzjjtX55.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/1y7ddkTYqIMX0EgzjjtX55.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff79347cae83515abb294e3c4135cc899e1013c66af264b9a711c70ce2e82ede. 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/6mzgYtXAUfpjweIN11lMuM.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/6mzgYtXAUfpjweIN11lMuM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7367d3b5f36c64d7a5330ff183b40494bfcdffa58c048fdb245bae0509fa8ebc. 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/1A72c5elaUGkczkrtp8oM0.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/1A72c5elaUGkczkrtp8oM0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ba75b0cb2d1ea36ebe98d75f4b65e65e1299f9130f45e1576c89269aab439b. 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/0hIKLJRpCnBOA8DO33T1q0.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/0hIKLJRpCnBOA8DO33T1q0.
{"copyright_id":"0xacd0ecc02e0e0b818fdf5065a9ca4ae2fb856df49a7deeb22c7786e8827044d1","isrc":"NL1LE2403526","name":"As Long as it’s in the Right Direction","registered_at":"2026-06-06T04:03:35Z","spotify_id":"1s08YiQ1GhBpiWcfJc0DgV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd0ecc02e0e0b818fdf5065a9ca4ae2fb856df49a7deeb22c7786e8827044d1. 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/1s08YiQ1GhBpiWcfJc0DgV.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/1s08YiQ1GhBpiWcfJc0DgV.