Pith Number

pith:4AW2NW2M

pith:2025:4AW2NW2MKIWLJSBFWKJQIKXO3X

not attested not anchored not stored refs pending

Fast segmentation of watermarked texts from large language models through an epidemic change-point framework

Sayar Karmakar, Soham Bonnerjee, Subhrajyoty Roy

arxiv:2509.21160 v2 · 2025-09-25 · stat.ML · cs.LG · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4AW2NW2MKIWLJSBFWKJQIKXO3X}

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	2026-07-09T01:19:37.765117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e02da6db4c522cb4c825b293042aeedde79c38ccee199d30c4df05797cb52c78

Aliases

arxiv: 2509.21160 · arxiv_version: 2509.21160v2 · doi: 10.48550/arxiv.2509.21160 · pith_short_12: 4AW2NW2MKIWL · pith_short_16: 4AW2NW2MKIWLJSBF · pith_short_8: 4AW2NW2M

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/4AW2NW2MKIWLJSBFWKJQIKXO3X \
  | 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: e02da6db4c522cb4c825b293042aeedde79c38ccee199d30c4df05797cb52c78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7a1d61a29005e450d46821ee78b70cd1699b614d90a3d9bb0da1136fbe1ce29",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ME"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2025-09-25T13:44:34Z",
    "title_canon_sha256": "fc12f26377d9150265c9d499667636ae5dfe77735f3efa440c076755c3b0cd52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.21160",
    "kind": "arxiv",
    "version": 2
  }
}