Signed attestation

{
  "alg": "Ed25519",
  "amount": "338852375.217",
  "attested_at": "2026-07-21T11:54:07Z",
  "attested_at_caveat": "self-asserted attestation time — not independently timestamped, not a claim of temporal precedence",
  "block": "84645773",
  "block_time": "2026-07-21 04:21:51+00",
  "chain": "usdt",
  "disclaimer": "The transaction fact (txid, amount, block, addresses) is independently verifiable on-chain. flow_type and entity labels are Swiss Whale Intelligence interpretations, not on-chain facts. This Ed25519 signature attests authorship by Swiss Whale Intelligence, not the correctness of the interpretation.",
  "entities": {
    "to": {
      "proof_url": "https://tronscan.org/#/address/TDqSquXBgUCLYvYC4XZgrprLK589dkhSCf",
      "source": "tronscan_label",
      "source_human": "Tronscan curated label",
      "tier": 2,
      "verified_at": ""
    }
  },
  "flow_type": "to_exchange",
  "from_address": "TWd4WrZ9wn84f5x1hZhL4DHvk738ns5jwb",
  "key_id": "swi-ed25519-8a0381c77bc3f06c",
  "methodology": {
    "whitepaper_sha256": "55ed9f0d6dbaf609a482a5941e53be8f08bc3891920e0b2e5928ac142f716326",
    "whitepaper_version": "v1"
  },
  "schema": "swi-attest/1",
  "to_address": "TDqSquXBgUCLYvYC4XZgrprLK589dkhSCf",
  "txid": "9c828e4ec4075de00c411b586103a2c51fdc3cdc3270f3eaad73de2e6555ece4",
  "unit": "USDT",
  "usd_at_tx": "338852375.217"
}