Pith Number

pith:Y727KFJ2

pith:2014:Y727KFJ2L6X5O74GSZLYMMSNAR

not attested not anchored not stored refs pending

Using Entropy Estimates for DAG-Based Ontologies

Andrew Warren, Joao Setubal

arxiv:1403.4887 v2 · 2014-03-19 · 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{Y727KFJ2L6X5O74GSZLYMMSNAR}

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	2026-05-18T00:42:13.810750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7f5f5153a5fafd77f86965786324d047b795d8fef69611c11507b60ffd225ed

Aliases

arxiv: 1403.4887 · arxiv_version: 1403.4887v2 · doi: 10.48550/arxiv.1403.4887 · pith_short_12: Y727KFJ2L6X5 · pith_short_16: Y727KFJ2L6X5O74G · pith_short_8: Y727KFJ2

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/Y727KFJ2L6X5O74GSZLYMMSNAR \
  | 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: c7f5f5153a5fafd77f86965786324d047b795d8fef69611c11507b60ffd225ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d712da234f08a7e16bfb1a444ff42eaa34a6b1a69683537a7f7a94c7956fc728",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2014-03-19T17:29:24Z",
    "title_canon_sha256": "059b0492104753eeb89cb3aa7a577ee7dab5bdf4e9d87e43ce47a0e1420c945e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.4887",
    "kind": "arxiv",
    "version": 2
  }
}