Pith Number

pith:2ZNICQHX

pith:2000:2ZNICQHXIIX2BFGXDYSHNB2OHO

not attested not anchored not stored refs pending

ATLAS: A flexible and extensible architecture for linguistic annotation

Christophe Laprun, David Day, John Garofolo, John Henderson, Mark Liberman, Steven Bird

arxiv:cs/0007022 v1 · 2000-07-13 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2ZNICQHXIIX2BFGXDYSHNB2OHO}

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	2026-07-04T14:24:03.549259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d65a8140f7422fa094d71e2476874e3b923c71aa853c27ff82c275b194ca0aae

Aliases

arxiv: cs/0007022 · arxiv_version: cs/0007022v1 · doi: 10.48550/arxiv.cs/0007022 · pith_short_12: 2ZNICQHXIIX2 · pith_short_16: 2ZNICQHXIIX2BFGX · pith_short_8: 2ZNICQHX

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/2ZNICQHXIIX2BFGXDYSHNB2OHO \
  | 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: d65a8140f7422fa094d71e2476874e3b923c71aa853c27ff82c275b194ca0aae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6405ed396451c0aedcd6ee50b75e6a92d3a498e830e3817320b82b01046e7243",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.CL",
    "submitted_at": "2000-07-13T18:26:38Z",
    "title_canon_sha256": "4d4370fe95966dc1dc4adb06942e1e553df34a991ff1e464d641aa01553aabed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0007022",
    "kind": "arxiv",
    "version": 1
  }
}