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 0xa01b10a0a5f48eb5c3dc1e2316db0c77753954f2eaedcb4e6c0a91b88c4ea151. 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/9a233724-391f-44e2-b06d-6f067e510e8b.json and https://artists.proofprofile.net/proofs/artist/9a233724-391f-44e2-b06d-6f067e510e8b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sometimes I Feel Like I'm Stuck in Limbo
{"copyright_id":"0x827c49ec52977fd2e92af40ca999b55aba76b8b6845634d2eb760e5aa88b1dad","isrc":"GBKQU2237567","name":"Cat's Cradle","registered_at":"2026-06-04T13:44:45Z","spotify_id":"1XJQVRgx7KtRZfUxmLum9u","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 0x827c49ec52977fd2e92af40ca999b55aba76b8b6845634d2eb760e5aa88b1dad. 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/1XJQVRgx7KtRZfUxmLum9u.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/1XJQVRgx7KtRZfUxmLum9u.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f40333deab60eda1915a7c394e00151645d79133bbb861f1755502c0ae2f04. 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/15FFw76uDMftN60lFfXFDA.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/15FFw76uDMftN60lFfXFDA.
Lofi Girl – chill beats for LEGO building
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae09c083df551c645679ea5083bb707f5cf03cf3731058c99d0113f9f37860f. 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/5cgJEA0zRE0XmAd7l8xImc.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/5cgJEA0zRE0XmAd7l8xImc.
{"copyright_id":"0xbae6aa50b91bcfc9b3be072851f0a4f74690a5d2df78d18d0bb8ef9ba6a7f750","isrc":"GBKQU2237570","name":"Thunder Nap","registered_at":"2026-06-05T08:19:25Z","spotify_id":"0EAVcuh4D5YP1jtkba7cFB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae6aa50b91bcfc9b3be072851f0a4f74690a5d2df78d18d0bb8ef9ba6a7f750. 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/0EAVcuh4D5YP1jtkba7cFB.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/0EAVcuh4D5YP1jtkba7cFB.
{"copyright_id":"0x2436876967a91e7d186ce78adb8432b9ae9c0beaf8d2bbe0d974b39a44d84792","isrc":"US3DF1954298","name":"Stuck In Traffic On Mars","registered_at":"2026-06-07T02:27:56Z","spotify_id":"7BbZKjTDd9oV9yWmwigNte","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2436876967a91e7d186ce78adb8432b9ae9c0beaf8d2bbe0d974b39a44d84792. 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/7BbZKjTDd9oV9yWmwigNte.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/7BbZKjTDd9oV9yWmwigNte.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72d9df000b01079eff2efc0b5cb52c5755836699f579aa5a77dd9ffdc9cbf00. 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/2DPRwd3Klx0rMRenWzi2Ic.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/2DPRwd3Klx0rMRenWzi2Ic.
{"copyright_id":"0xb2f9f7ff6e1202af40d76cdfab7e23f877aee7070de1ae78ad205601418a5065","isrc":"UKZGC2307373","name":"The Lonely Ghost","registered_at":"2026-06-09T05:01:17Z","spotify_id":"4836RLvjmk5P7DjmeiCaSD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f9f7ff6e1202af40d76cdfab7e23f877aee7070de1ae78ad205601418a5065. 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/4836RLvjmk5P7DjmeiCaSD.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/4836RLvjmk5P7DjmeiCaSD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f3346dc392b7ff34fd40add026678a667bcdabd5c5f435a6379cd7ae94b249. 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/7acrUNiIjs2qQ0AwsKkBTs.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/7acrUNiIjs2qQ0AwsKkBTs.
{"copyright_id":"0xfb491ecf55df54230bc1bc8e06aa8df034dbac63cc45504397ddec2fab32c2fb","isrc":"QZN882185144","name":"Pillow Fort","registered_at":"2026-06-10T03:44:06Z","spotify_id":"1Ge6NRVWGaRW5ACHqCkuo9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb491ecf55df54230bc1bc8e06aa8df034dbac63cc45504397ddec2fab32c2fb. 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/1Ge6NRVWGaRW5ACHqCkuo9.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/1Ge6NRVWGaRW5ACHqCkuo9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9bfa5fdc961df663e0c53c73ed791e8c5aa2800ba6159105fe14c23a0a26b4. 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/79MFRvqga1P4ltJ8iPPGrm.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/79MFRvqga1P4ltJ8iPPGrm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b554e338a2bf9c7ca6636ed2925a41f40b8a5eb5a637d2d64bd31b70062bfec. 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/2mrPFWadCE5uA8A3d64msu.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/2mrPFWadCE5uA8A3d64msu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aec6132815845baa7b67b8e91caab5e7e9a40494e818107c8302b2674917ac4. 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/0moQWXDmM1agucHlRMnSMv.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/0moQWXDmM1agucHlRMnSMv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670e84d67ef27395229b3e5aea8ee5876366428d6435cfb410f6de56d6e79fc8. 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/1c1WgCHRTS1Au7hG0MlLhR.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/1c1WgCHRTS1Au7hG0MlLhR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16842ccfa02946b756a57bbc34ea452ccd636eaec7a4ca0d7f6b8812f1deb43. 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/4Z3Jp5Rcn7zyk9f36MEsho.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/4Z3Jp5Rcn7zyk9f36MEsho.
{"copyright_id":"0xf9ae179665f3079747e95b6e99ac0a4fb9b0fd54e0cc9f8c626caeb47499d37b","isrc":"TCAEN1970806","name":"Alone Time","registered_at":"2026-06-04T09:35:28Z","spotify_id":"0yq97nlPamoaHtJzROuYK1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ae179665f3079747e95b6e99ac0a4fb9b0fd54e0cc9f8c626caeb47499d37b. 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/0yq97nlPamoaHtJzROuYK1.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/0yq97nlPamoaHtJzROuYK1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd02c6304c2a09869e9849866e0ecca4aa059fbfc877768898294850a75f3c0. 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/0sNZDOJYxsGBUReEGHvx21.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/0sNZDOJYxsGBUReEGHvx21.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc8977e31dd51a52773528fb9dff3051d864014a3637fb38d8b16ae2e077cb2. 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/0BmTbw1V0GxqWT4iHSsBz7.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/0BmTbw1V0GxqWT4iHSsBz7.
Lofi Girl x Chess.com - Chill beats to play chess to
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec55d29b18301d8fa67b9c5deff4a3e4f83e12c7616de59629751457aedbfa7e. 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/4npHqOVd9KY6rJKfbnMw5B.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/4npHqOVd9KY6rJKfbnMw5B.
{"copyright_id":"0x1fe7cbe56930e1e784a36ee5f666382c525acbe87ce6a61609a1a22abda8ab74","isrc":"TCAES2036546","name":"Midnight Snack","registered_at":"2026-06-04T10:18:09Z","spotify_id":"1AOnNbg3R8FXcGZwBdWMzw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe7cbe56930e1e784a36ee5f666382c525acbe87ce6a61609a1a22abda8ab74. 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/1AOnNbg3R8FXcGZwBdWMzw.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/1AOnNbg3R8FXcGZwBdWMzw.