Pith Number

pith:HGY35FYC

pith:2002:HGY35FYCFEBRTZ6JGEXX5FL7OU

not attested not anchored not stored refs pending

Creating Annotation Tools with the Annotation Graph Toolkit

Haejoong Lee, Kazuaki Maeda, Steven Bird, Xiaoyi Ma

arxiv:cs/0204005 v1 · 2002-04-03 · cs.CL · cs.SD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HGY35FYCFEBRTZ6JGEXX5FL7OU}

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	2026-07-04T14:24:16.433135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39b1be9702290319e7c9312f7e957f75165837f192a1565b06d0854895f06d20

Aliases

arxiv: cs/0204005 · arxiv_version: cs/0204005v1 · doi: 10.48550/arxiv.cs/0204005 · pith_short_12: HGY35FYCFEBR · pith_short_16: HGY35FYCFEBRTZ6J · pith_short_8: HGY35FYC

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/HGY35FYCFEBRTZ6JGEXX5FL7OU \
  | 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: 39b1be9702290319e7c9312f7e957f75165837f192a1565b06d0854895f06d20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88fe9ca74f28ef7a85b57ef31eb26ee4ef25b28d90d3ab1fcd7143323b061228",
    "cross_cats_sorted": [
      "cs.SD"
    ],
    "license": "",
    "primary_cat": "cs.CL",
    "submitted_at": "2002-04-03T17:32:53Z",
    "title_canon_sha256": "871efa746e972ad7dec316d98a8538ffa635ae4969a310feac31584abb61085e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0204005",
    "kind": "arxiv",
    "version": 1
  }
}