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 0x5f12c3504a4143fac2930da48634aaf659fbf9c3cb7d0cfc928bf2132c640305. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa9c3f99-0eff-495a-925a-05f71c38e86c.json and https://artists.proofprofile.net/proofs/artist/fa9c3f99-0eff-495a-925a-05f71c38e86c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x480343d7a16de74a9c50224823a89cbec34ad9f22757705b8eebd62d661d102a","isrc":"USAT22301681","name":"If I Had (feat. Charlie Wilson)","registered_at":"2026-06-04T08:02:20Z","spotify_id":"6xrOK7NQTx8ifKnnjoouP5","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 0x480343d7a16de74a9c50224823a89cbec34ad9f22757705b8eebd62d661d102a. 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/6xrOK7NQTx8ifKnnjoouP5.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/6xrOK7NQTx8ifKnnjoouP5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48941070c032f29140c92fa1c4c98b8e74381fed27310a772af9b6c757aa760b. 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/7eQkQ39f9mweFC85owgnp9.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/7eQkQ39f9mweFC85owgnp9.
{"copyright_id":"0x480343d7a16de74a9c50224823a89cbec34ad9f22757705b8eebd62d661d102a","isrc":"USAT22301681","name":"If I Had (feat. Charlie Wilson)","registered_at":"2026-06-04T08:02:20Z","spotify_id":"3JJqdVXy8p9rCtTmlv1mXO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480343d7a16de74a9c50224823a89cbec34ad9f22757705b8eebd62d661d102a. 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/3JJqdVXy8p9rCtTmlv1mXO.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/3JJqdVXy8p9rCtTmlv1mXO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565267cad74a344d26e68252fa3e03f529d9fed292b5d80f07b14937d9286196. 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/2Jm56bcnfft4thtrbN9SW4.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/2Jm56bcnfft4thtrbN9SW4.
{"copyright_id":"0x480343d7a16de74a9c50224823a89cbec34ad9f22757705b8eebd62d661d102a","isrc":"USAT22301681","name":"If I Had (feat. Charlie Wilson)","registered_at":"2026-06-04T08:02:20Z","spotify_id":"7gEUdaVffLsb2qgdj90cBk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480343d7a16de74a9c50224823a89cbec34ad9f22757705b8eebd62d661d102a. 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/7gEUdaVffLsb2qgdj90cBk.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/7gEUdaVffLsb2qgdj90cBk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb312ae80e0e147e1574f9aa752656be6c86b81fd2be044b5b0884e1020b4623c. 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/1oQLzryECAAeX7GmddL6jn.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/1oQLzryECAAeX7GmddL6jn.
ROADRUNNER: NEW LIGHT, NEW MACHINE PLUS PACK
{"copyright_id":"0x470099485443fe93730921445266eaec6b32c30cc30bf19abea44681fbcd74f3","isrc":"USRC12100221","name":"I'LL TAKE YOU ON (feat. Charlie Wilson)","registered_at":"2026-06-05T10:18:23Z","spotify_id":"5ZQ3emIPETWpZH9Q9sRF6F","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470099485443fe93730921445266eaec6b32c30cc30bf19abea44681fbcd74f3. 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/5ZQ3emIPETWpZH9Q9sRF6F.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/5ZQ3emIPETWpZH9Q9sRF6F.
Gucci Pajamas (feat. Chance the Rapper and Charlie Wilson)
Attitude (Don Toliver Sped Up Version) [feat. Charlie Wilson & Cash Cobain]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2c9c569759b32cc5070f62ca8a8ebe1809667969897a313894f452070239aa. 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/2t7IyE7fBnYO5mFdhdCt8g.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/2t7IyE7fBnYO5mFdhdCt8g.
The 1 That Got Away/No Shoes (feat. Charlie Wilson)
{"copyright_id":"0xf5cb46b68d8f38510e13d37d70a0c2f46d873c2d509cf996cd53fb2bf1505657","isrc":"QMJMT1801974","name":"The 1 That Got Away/No Shoes (feat. Charlie Wilson)","registered_at":"2026-06-19T15:21:25Z","spotify_id":"1DCmC5quOsPUTj7zxXlK41","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cb46b68d8f38510e13d37d70a0c2f46d873c2d509cf996cd53fb2bf1505657. 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/1DCmC5quOsPUTj7zxXlK41.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/1DCmC5quOsPUTj7zxXlK41.
Remember Pearl Harbor: Classic Songs Of World War II
Attitude (feat. Charlie Wilson & Cash Cobain)
{"copyright_id":"0xc02076123ef2adf7ae5e8ee97799c49025af53af8120feb0832db42012cd11b9","isrc":"USWB11902691","name":"Can't Explain It (feat. Charlie Wilson)","registered_at":"2026-06-08T00:16:21Z","spotify_id":"3nEwza00qN1AECkVtPS4oq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02076123ef2adf7ae5e8ee97799c49025af53af8120feb0832db42012cd11b9. 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/3nEwza00qN1AECkVtPS4oq.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/3nEwza00qN1AECkVtPS4oq.
{"copyright_id":"0x470099485443fe93730921445266eaec6b32c30cc30bf19abea44681fbcd74f3","isrc":"USRC12100221","name":"I'LL TAKE YOU ON (feat. Charlie Wilson)","registered_at":"2026-06-05T10:18:23Z","spotify_id":"3HeHUhpH7heTjyJU5pBnBp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470099485443fe93730921445266eaec6b32c30cc30bf19abea44681fbcd74f3. 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/3HeHUhpH7heTjyJU5pBnBp.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/3HeHUhpH7heTjyJU5pBnBp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2c9c569759b32cc5070f62ca8a8ebe1809667969897a313894f452070239aa. 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/6CUd1vAgBaRiimFDJblyFb.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/6CUd1vAgBaRiimFDJblyFb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20d4b1aff53799aedba86055338c3b4027b9578ab050150b1ff0b4ead61b134. 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/45oGS3iHeT2cvkihSP7KzK.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/45oGS3iHeT2cvkihSP7KzK.