Signed attestation

USDT · 0x1cf85f5cbdd202a491196bb4b747024018e74dfbc9d094f0a6b3daebf2bd1da6

1 · The fact is on the public blockchain — verify it independently.

2 · Swiss Whale Intelligence signed this interpretation

key_id swi-ed25519-8a0381c77bc3f06c · alg Ed25519
attested_at 2026-08-25T00:52:39Z
self-asserted attestation time — not independently timestamped, not a claim of temporal precedence

This proves authorship, not correctness.

3 · Proof-backed label provenance (frozen into the signature)

No proof-backed label frozen for this transaction.

Methodology: whitepaper v1 · sha256 55ed9f0d6dbaf609a482a5941e53be8f… (pinned; read it ↗)

Signed bytes + signature (JSON)

{
  "alg": "Ed25519",
  "amount": "100000000.0",
  "attested_at": "2026-08-25T00:52:39Z",
  "attested_at_caveat": "self-asserted attestation time — not independently timestamped, not a claim of temporal precedence",
  "block": "25828022",
  "block_time": "2026-08-24 22:27:23+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": {},
  "flow_type": "to_exchange",
  "from_address": "0xf833685f98eba1b99947d418c9512d27c8193b1a",
  "key_id": "swi-ed25519-8a0381c77bc3f06c",
  "methodology": {
    "whitepaper_sha256": "55ed9f0d6dbaf609a482a5941e53be8f08bc3891920e0b2e5928ac142f716326",
    "whitepaper_version": "v1"
  },
  "schema": "swi-attest/1",
  "to_address": "0xf89d7b9c864f589bbf53a82105107622b35eaa40",
  "txid": "0x1cf85f5cbdd202a491196bb4b747024018e74dfbc9d094f0a6b3daebf2bd1da6",
  "unit": "USDT",
  "usd_at_tx": "100000000.0"
}

signature_b64: eaj7DHm8P9tX9hi+vrdjI7+evm1cT9xbFQICeBnPkCDwvtnAwk6efOrhXBoEdmCOMphy6zX2Pgo/xVUrYWevDQ==

Verify independently — needs only pip install cryptography:

python verify_attestation.py usdt 0x1cf85f5cbdd202a491196bb4b747024018e74dfbc9d094f0a6b3daebf2bd1da6

Trust roots in the key published at /.well-known/swi-attest-keys.json · raw attestation JSON ↗