Pith Number

pith:QQIWZFYH

pith:2013:QQIWZFYHTIUFGGIET65P3M3R7L

not attested not anchored not stored refs pending

Extracting Connected Concepts from Biomedical Texts using Fog Index

Robert E. Mercer, Rushdi Shams

arxiv:1307.8057 v1 · 2013-07-30 · 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{QQIWZFYHTIUFGGIET65P3M3R7L}

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	2026-05-18T03:17:02.352561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84116c97079a285319049fbafdb371fac470c2fe04b85c8a419d88aed2a20c8d

Aliases

arxiv: 1307.8057 · arxiv_version: 1307.8057v1 · doi: 10.48550/arxiv.1307.8057 · pith_short_12: QQIWZFYHTIUF · pith_short_16: QQIWZFYHTIUFGGIE · pith_short_8: QQIWZFYH

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/QQIWZFYHTIUFGGIET65P3M3R7L \
  | 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: 84116c97079a285319049fbafdb371fac470c2fe04b85c8a419d88aed2a20c8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40f79ebfbc0adee965e56feba8c520f6a812c8b25970f81b6bc27e95f8d6c72a",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2013-07-30T17:27:29Z",
    "title_canon_sha256": "23b792c8af8f8f2723e673d67a87d764f98ef2f5df3a8a40d8e4c5d229ea85b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.8057",
    "kind": "arxiv",
    "version": 1
  }
}