Pith Number

pith:4GCZI2DR

pith:2014:4GCZI2DR7KYB5JYVICKAYSF4Q5

not attested not anchored not stored refs pending

Using temporal IDF for efficient novelty detection in text streams

Alexandros Ntoulas, Francois Rousseau, Margarita Karkali, Michalis Vazirgiannis

arxiv:1401.1456 v2 · 2014-01-07 · 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{4GCZI2DR7KYB5JYVICKAYSF4Q5}

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	2026-05-18T02:38:10.410540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e185946871fab01ea71540940c48bc874ae5b212cf791f2dd6f3a205a923acb4

Aliases

arxiv: 1401.1456 · arxiv_version: 1401.1456v2 · doi: 10.48550/arxiv.1401.1456 · pith_short_12: 4GCZI2DR7KYB · pith_short_16: 4GCZI2DR7KYB5JYV · pith_short_8: 4GCZI2DR

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/4GCZI2DR7KYB5JYVICKAYSF4Q5 \
  | 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: e185946871fab01ea71540940c48bc874ae5b212cf791f2dd6f3a205a923acb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5b86b9e837b9ab434406efbb70cf34f127f1f9f69f61d9a13181564d274eb34",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2014-01-07T17:43:37Z",
    "title_canon_sha256": "52b2bfd7c0bea4a936ccdfae15e2562a12115b84dea5ca21f328a8bb73b960fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1456",
    "kind": "arxiv",
    "version": 2
  }
}