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 0x50973a7c01b0d990107613bc38ac45cee8043a0d4c47a786440c624e03aee7ee. 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/f0f8fd79-0502-486d-af0f-67cd4b8de612.json and https://artists.proofprofile.net/proofs/artist/f0f8fd79-0502-486d-af0f-67cd4b8de612.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 0x208acab963f7a6c2d48ded328d448435c85b3900478be0d5393bf0026218dbfc. 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/3vYdVVIzRivEU4EGezZIzu.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/3vYdVVIzRivEU4EGezZIzu.
{"copyright_id":"0x71318eceba0cc78cf7c76c9ef8eb4355a94fc90fb0651ba4e66d1a156c4213eb","isrc":"QZ2EW2200093","name":"Meeting of the Mind","registered_at":"2026-06-07T21:48:46Z","spotify_id":"5ucv2UHGTdHyHbBEFzBd6W","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71318eceba0cc78cf7c76c9ef8eb4355a94fc90fb0651ba4e66d1a156c4213eb. 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/5ucv2UHGTdHyHbBEFzBd6W.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/5ucv2UHGTdHyHbBEFzBd6W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7810ab0a074da09798ee65029d2ebd59f643edf664f669de19477423f11f3590. 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/4Wnnuvb0ADlJW3IOCK2hdv.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/4Wnnuvb0ADlJW3IOCK2hdv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa6640d4c576df06a43d9e87ce242694c3faec13c5122d8ddb1ca0444c005a2. 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/77CE6Tzo3y26GTV5dBrL2k.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/77CE6Tzo3y26GTV5dBrL2k.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858bb12cb136e40b92e60a1f92f56b4df1cbd967dcfc0ef54cc56ddbbbe74c96. 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/3M4eOMalgakHgEQ7hDK2J0.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/3M4eOMalgakHgEQ7hDK2J0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270f022e3892f8b58892a919154a5f14ccd0154a9e9ec351fdefd4dfb0ebe4bd. 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/6vU58G2mUkEJw4nZ2Vr3iQ.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/6vU58G2mUkEJw4nZ2Vr3iQ.
{"copyright_id":"0x446e886cfcd56ce66d8cae83ff5528b09dde91f3662a0006648511aecd651304","isrc":"QZ2EW2200098","name":"Anthem for a Tiny Nation","registered_at":"2026-06-08T05:31:03Z","spotify_id":"4SaHHk8xWkL43KbAYeeNIb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446e886cfcd56ce66d8cae83ff5528b09dde91f3662a0006648511aecd651304. 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/4SaHHk8xWkL43KbAYeeNIb.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/4SaHHk8xWkL43KbAYeeNIb.
{"copyright_id":"0x3efcc79c8c9064ade5c5172209bf667de045933773ecad3bb3ba7c3bc8be4a5b","isrc":"QZ2EW2200099","name":"Ngoni Baby","registered_at":"2026-06-07T15:11:50Z","spotify_id":"5EEMHZ0Y6UnrjhNYcCgu8H","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efcc79c8c9064ade5c5172209bf667de045933773ecad3bb3ba7c3bc8be4a5b. 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/5EEMHZ0Y6UnrjhNYcCgu8H.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/5EEMHZ0Y6UnrjhNYcCgu8H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1486a7a82132e5ba9a31714c4611fbe5669565e5dc83bbe7b7904648954895. 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/1kpqvVw9t4Rim21Qty19WH.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/1kpqvVw9t4Rim21Qty19WH.
{"copyright_id":"0x200b508595efc93c193f5f1eaf0f7199b2a036666cb1c5042a900104b6562d7b","isrc":"QZ2EW2200101","name":"Where You Wish You Were","registered_at":"2026-06-06T18:10:28Z","spotify_id":"6GHBzCQkflozLwTHNgSWe2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200b508595efc93c193f5f1eaf0f7199b2a036666cb1c5042a900104b6562d7b. 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/6GHBzCQkflozLwTHNgSWe2.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/6GHBzCQkflozLwTHNgSWe2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a00bfe8ea457403e572adc8ac429099e8df7c64bb55b96e0ccf635693599421. 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/6nXuViQXmegLXwdVK80Io6.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/6nXuViQXmegLXwdVK80Io6.
{"copyright_id":"0x94472a32274a979bb545655efa5e9432fda7f9e52dfaec703a92ad1e860bac48","isrc":"QZ2EW2100037","name":"Right Where I Fall","registered_at":"2026-06-18T05:14:16Z","spotify_id":"4Gq1SQJXIuw9Uva7LBBSOH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94472a32274a979bb545655efa5e9432fda7f9e52dfaec703a92ad1e860bac48. 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/4Gq1SQJXIuw9Uva7LBBSOH.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/4Gq1SQJXIuw9Uva7LBBSOH.
Lingus (Michael League & Nic Hard Remix)
Lingus - Michael League & Nic Hard Remix
{"copyright_id":"0x94472a32274a979bb545655efa5e9432fda7f9e52dfaec703a92ad1e860bac48","isrc":"QZ2EW2100037","name":"Right Where I Fall","registered_at":"2026-06-18T05:14:16Z","spotify_id":"09aveV2BWAUId1aGh5P6Pq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94472a32274a979bb545655efa5e9432fda7f9e52dfaec703a92ad1e860bac48. 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/09aveV2BWAUId1aGh5P6Pq.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/09aveV2BWAUId1aGh5P6Pq.