Pith Number

pith:2FUY575Y

pith:2026:2FUY575YXRD27SVN2TW264YBC5

not attested not anchored not stored refs pending

MemMark: State-Evolution Attribution Watermarking for Agent Long-Term Memory Systems

Guangyuan Dong, Haobo Zhang, Jing Yang, Kaijie Chen, Xuanbo Su, Xutao Mao, Zheng Lin, Ziwei Li

arxiv:2605.25002 v1 · 2026-05-24 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2FUY575YXRD27SVN2TW264YBC5}

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	2026-05-26T01:04:10.143041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1698effb8bc47afcaadd4edaf7301174f891d851f0d568901b71292350e1b68

Aliases

arxiv: 2605.25002 · arxiv_version: 2605.25002v1 · doi: 10.48550/arxiv.2605.25002 · pith_short_12: 2FUY575YXRD2 · pith_short_16: 2FUY575YXRD27SVN · pith_short_8: 2FUY575Y

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/2FUY575YXRD27SVN2TW264YBC5 \
  | 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: d1698effb8bc47afcaadd4edaf7301174f891d851f0d568901b71292350e1b68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f73f77eca035ab4d510b413fa4f13d3930dc4f64cabe958b5b808f3bf2266fbf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-05-24T11:04:35Z",
    "title_canon_sha256": "70d05cf975d18ed131b99de343c4c0d29fdf463fd91ea892fd1824222e235a6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.25002",
    "kind": "arxiv",
    "version": 1
  }
}