Signed attestation

{
  "alg": "Ed25519",
  "amount": "2300.0",
  "attested_at": "2026-08-26T21:25:04Z",
  "attested_at_caveat": "self-asserted attestation time — not independently timestamped, not a claim of temporal precedence",
  "block": "25838607",
  "block_time": "2026-08-26 09:51:59+00",
  "chain": "gold",
  "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://etherscan.io/address/0x5bdf85216ec1e38d6458c870992a69e38e03f7ef",
      "source": "etherscan",
      "source_human": "Etherscan curated label",
      "tier": 2,
      "verified_at": ""
    }
  },
  "flow_type": "to_exchange",
  "from_address": "0xadfffc33cdc9970349cbcea3d73ec343d6ed116d",
  "key_id": "swi-ed25519-8a0381c77bc3f06c",
  "methodology": {
    "whitepaper_sha256": "55ed9f0d6dbaf609a482a5941e53be8f08bc3891920e0b2e5928ac142f716326",
    "whitepaper_version": "v1"
  },
  "schema": "swi-attest/1",
  "to_address": "0x5bdf85216ec1e38d6458c870992a69e38e03f7ef",
  "txid": "0xc63bf5536e80fac0d1bf6f7ae2110352a51e73d81c49cd5399f800b29be0403a",
  "unit": "oz XAUT",
  "usd_at_tx": "10601229.0"
}