Pith Number

pith:LPNOWGYC

pith:2015:LPNOWGYCXB54I4PIWQAWHKP4XK

not attested not anchored not stored refs pending

Topic-focused Dynamic Information Filtering in Social Media

Jiafeng Guo, Xueqi Cheng, Yadong Zhu, Yanyan Lan

arxiv:1504.04945 v1 · 2015-04-20 · 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{LPNOWGYCXB54I4PIWQAWHKP4XK}

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	2026-05-18T02:18:24.272536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bdaeb1b02b87bc471e8b40163a9fcbab0ef3a94ba7ce558dab27d63e7abc041

Aliases

arxiv: 1504.04945 · arxiv_version: 1504.04945v1 · doi: 10.48550/arxiv.1504.04945 · pith_short_12: LPNOWGYCXB54 · pith_short_16: LPNOWGYCXB54I4PI · pith_short_8: LPNOWGYC

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/LPNOWGYCXB54I4PIWQAWHKP4XK \
  | 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: 5bdaeb1b02b87bc471e8b40163a9fcbab0ef3a94ba7ce558dab27d63e7abc041

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "119c0efc42beedb96d09e00e9ac8726da0c808ee7b4d84aa650f2f1a4bda6897",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2015-04-20T06:12:06Z",
    "title_canon_sha256": "c5dae083c9efaa04a43602ec3247fca8a54fde0ebe2e00884b6da232b54bab93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04945",
    "kind": "arxiv",
    "version": 1
  }
}