Pith Number

pith:726JLOJL

pith:2020:726JLOJLB7CZD4TZM5RCQILSIY

not attested not anchored not stored refs pending

A Topological Method for Comparing Document Semantics

Benjamin Carterette, Fanchao Meng, Yuqi Kong

arxiv:2012.04203 v1 · 2020-12-08 · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{726JLOJLB7CZD4TZM5RCQILSIY}

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	2026-07-05T01:58:01.843398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

febc95b92b0fc591f2796762282172463bf1eac340d03497e07560ca6cff5f49

Aliases

arxiv: 2012.04203 · arxiv_version: 2012.04203v1 · doi: 10.48550/arxiv.2012.04203 · pith_short_12: 726JLOJLB7CZ · pith_short_16: 726JLOJLB7CZD4TZ · pith_short_8: 726JLOJL

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/726JLOJLB7CZD4TZM5RCQILSIY \
  | 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: febc95b92b0fc591f2796762282172463bf1eac340d03497e07560ca6cff5f49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8755b3bc88f8d13862952de4471238851796317b2ebe373c0b251fa02c586888",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-12-08T04:21:40Z",
    "title_canon_sha256": "a18024bc01b6a6c0cc6664c51ab9e6fa494c1548760c96f8f391342f48d176e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.04203",
    "kind": "arxiv",
    "version": 1
  }
}