Pith Number

pith:L5C2D7VH

pith:2014:L5C2D7VHK4RVKEHSNWXUXHFQA4

not attested not anchored not stored refs pending

Crowd-Sourcing Fuzzy and Faceted Classification for Concept Search

Aske Plaat, Dap Hartmann, Marcus Luczak-Rosch, Richard Absalom

arxiv:1406.7749 v1 · 2014-06-30 · cs.IR · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L5C2D7VHK4RVKEHSNWXUXHFQA4}

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	2026-05-18T02:48:44.279689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f45a1fea757235510f26daf4b9cb00718423944752578603374160184363ab8

Aliases

arxiv: 1406.7749 · arxiv_version: 1406.7749v1 · doi: 10.48550/arxiv.1406.7749 · pith_short_12: L5C2D7VHK4RV · pith_short_16: L5C2D7VHK4RVKEHS · pith_short_8: L5C2D7VH

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/L5C2D7VHK4RVKEHSNWXUXHFQA4 \
  | 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: 5f45a1fea757235510f26daf4b9cb00718423944752578603374160184363ab8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2a16ad731b85caf617ccb214d02ae3908458baec0b1f0bc2bb49fdbd4aed043",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2014-06-30T14:18:29Z",
    "title_canon_sha256": "4b5e8cf6f24872f8c156081998e31dbc4c016beee350ec7127ccd415d4e3e2e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7749",
    "kind": "arxiv",
    "version": 1
  }
}