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 0x0b5bd4774c2d4fdb8f60479c294b2bec3a4093b282f1f54639844ca88dc51f4f. 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/486b6220-ae8f-41c1-bce6-e28b6926f665.json and https://artists.proofprofile.net/proofs/artist/486b6220-ae8f-41c1-bce6-e28b6926f665.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x3c6c0e9808991bcd92f3191b3c0d88634b1090f8d419bd0a25f04fa2626a3d90","isrc":"USCGJ1489278","name":"I Can't Wife No Shone","registered_at":"2026-06-06T12:24:19Z","spotify_id":"2rBFdrkhOiFERdHdF6qsAo","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 0x3c6c0e9808991bcd92f3191b3c0d88634b1090f8d419bd0a25f04fa2626a3d90. 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/2rBFdrkhOiFERdHdF6qsAo.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/2rBFdrkhOiFERdHdF6qsAo.
Footwork (feat. Lil Dred & Major Nine) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cbc937d7e9920a87d847f16a460de7303714091deb74bef88a035ce5706187. 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/54waNzXczo1XddEhJkz6pN.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/54waNzXczo1XddEhJkz6pN.
{"copyright_id":"0xece445fedb0fbc282ffc866d2e0f3b869bb913f193c5a2a0063776221aab890b","isrc":"QZWDD2228309","name":"Diamond In The Rough","registered_at":"2026-06-21T20:46:32Z","spotify_id":"5MLvxjEh2ArnZQygFwAzrY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece445fedb0fbc282ffc866d2e0f3b869bb913f193c5a2a0063776221aab890b. 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/5MLvxjEh2ArnZQygFwAzrY.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/5MLvxjEh2ArnZQygFwAzrY.
Zombie (feat. Lil Dred, Chad 99 & Sam Sneak)
{"copyright_id":"0xd3e2a0d6fb2ff666b31b3f1477a5d411d27780c808a6db62aef2209e926c29ae","isrc":"USDY41561180","name":"Zombie (feat. Lil Dred, Chad 99 & Sam Sneak)","registered_at":"2026-06-19T07:50:55Z","spotify_id":"1Wwi2hq2hXblsPtEeE9xD8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e2a0d6fb2ff666b31b3f1477a5d411d27780c808a6db62aef2209e926c29ae. 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/1Wwi2hq2hXblsPtEeE9xD8.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/1Wwi2hq2hXblsPtEeE9xD8.
Dem Ah Wonder (feat. Major Nine & Lil Dred)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76574769b6672a9644dc501282365fbce7f21fa83a990299921ea70949bf7461. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6EAThW0MVflXfxrMQyc8OG.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/6EAThW0MVflXfxrMQyc8OG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638b698033ff8a1a39a64dd3dbb2f818ea9c1d4f08a1923dd99294d9c7e1814c. 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/11nzf76MK0ag7bEJttDaXl.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/11nzf76MK0ag7bEJttDaXl.
{"copyright_id":"0xdd25afd97f593e8b499b8b3a7220d219606e2ad2d743e4ab5a86ba90748363bf","isrc":"TCAEB1938811","name":"Size 6 Louis","registered_at":"2026-06-18T02:38:09Z","spotify_id":"4jigasAgfUdvtxftTSR8Yx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd25afd97f593e8b499b8b3a7220d219606e2ad2d743e4ab5a86ba90748363bf. 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/4jigasAgfUdvtxftTSR8Yx.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/4jigasAgfUdvtxftTSR8Yx.
{"copyright_id":"0x8af46c015ed6bd9c96e9acc48bfe7de85c3902804b28d8ff553928eea7b20088","isrc":"USUYG1165720","name":"Nice & Slow (feat. Lil Dred)","registered_at":"2026-06-04T15:05:09Z","spotify_id":"3XUjRWmImtzsaBwCnkORRZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af46c015ed6bd9c96e9acc48bfe7de85c3902804b28d8ff553928eea7b20088. 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/3XUjRWmImtzsaBwCnkORRZ.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/3XUjRWmImtzsaBwCnkORRZ.