Pith Number

pith:57X4NAHG

pith:2026:57X4NAHGLTXXF6M6WLIZTYNCUY

not attested not anchored not stored refs pending

Whose Agent Are You? Multi-Layer Fingerprinting and Attribution of Autonomous Web Agents

Amir Houmansadr, Dayeon Kang, Hyejun Jeong, Jade Sheffey, Pubali Datta

arxiv:2606.20910 v1 · 2026-06-18 · cs.CR · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{57X4NAHGLTXXF6M6WLIZTYNCUY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-23T01:12:21.721640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efefc680e65cef72f99eb2d199e1a2a601d7e5e934ca6d16348883a6c336c932

Aliases

arxiv: 2606.20910 · arxiv_version: 2606.20910v1 · doi: 10.48550/arxiv.2606.20910 · pith_short_12: 57X4NAHGLTXX · pith_short_16: 57X4NAHGLTXXF6M6 · pith_short_8: 57X4NAHG

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/57X4NAHGLTXXF6M6WLIZTYNCUY \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: efefc680e65cef72f99eb2d199e1a2a601d7e5e934ca6d16348883a6c336c932

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07dbf78d2c3fdf641eebbbc48b7978504862720427f4dea2caf27d89938764ed",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-06-18T20:07:39Z",
    "title_canon_sha256": "6aab9491f9b81b61c7321593ad2294f657a8742cdf62108ab57f15434d2c9d1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.20910",
    "kind": "arxiv",
    "version": 1
  }
}