William Zervakos McFarland (born December 11, 1991) is an American businessman and entrepreneur who was convicted of financial crimes related to Fyre Festival, having defrauded investors of $27.4 mill
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x345c5b730ec3894c2c2db47a2ca8272c034f5b74e7e534978016ad49bfdd3161. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/280773f4-b076-4dc4-be7a-0b72a452e63c.json and https://artists.proofprofile.net/proofs/artist/280773f4-b076-4dc4-be7a-0b72a452e63c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Country Style - 20 Classic Country Songs
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6058975f21f747ad52a2be9e893cd67a89a746b885cc775d67d882d035c7d7be. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:05:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFU71500818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1822e6e28a04e9752639df7779fe00d42dec3564aae8bd960f7baca67844ef4. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFU71500821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8400a0b92a830d995fb59f4eeae1f8a8b4be3680bc9e2b81791d943005932c9b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFU71500831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe052a600f0c34bf0626be2a3904f36450e4f6fb6ac1b2b5ac7db7f369a7c9ff2. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFU71500846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8a172d8975e5205d4b2466b43d1960929eb4189d6722cf7cb72e9a15ede31b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFU71503164.