Pith Number

pith:Z5AILXDP

pith:1999:Z5AILXDPB7M2AKDA3MW6KFBLUG

not attested not anchored not stored refs pending

Annotation graphs as a framework for multidimensional linguistic data analysis

Mark Liberman, Steven Bird

arxiv:cs/9907003 v1 · 1999-07-05 · 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{Z5AILXDPB7M2AKDA3MW6KFBLUG}

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	2026-07-04T14:25:11.488217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf4085dc6f0fd9a02860db2de5142ba1827fbd5d8247f2efd7301ae3f22e9caa

Aliases

arxiv: cs/9907003 · arxiv_version: cs/9907003v1 · doi: 10.48550/arxiv.cs/9907003 · pith_short_12: Z5AILXDPB7M2 · pith_short_16: Z5AILXDPB7M2AKDA · pith_short_8: Z5AILXDP

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/Z5AILXDPB7M2AKDA3MW6KFBLUG \
  | 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: cf4085dc6f0fd9a02860db2de5142ba1827fbd5d8247f2efd7301ae3f22e9caa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3a59214aa5c086e5d3ef5ef3f14ce4b0b76af20915dbf59eb689fb3a443e61c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.CL",
    "submitted_at": "1999-07-05T14:51:26Z",
    "title_canon_sha256": "6a16c271bc5a90a0c262eda8afb1ed25a98ec67c12799d366b659b0fb118504b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/9907003",
    "kind": "arxiv",
    "version": 1
  }
}