Pith Number

pith:PICJ67NS

pith:2013:PICJ67NSMP4ACUNP6NBJQ6ORB3

not attested not anchored not stored refs pending

A Robust Information Source Estimator with Sparse Observations

Kai Zhu, Lei Ying

arxiv:1309.4846 v1 · 2013-09-19 · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PICJ67NSMP4ACUNP6NBJQ6ORB3}

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	2026-05-18T03:12:57.163589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a049f7db263f80151aff3429879d10ecb76735f5d104fcc79809a10e0cad8df

Aliases

arxiv: 1309.4846 · arxiv_version: 1309.4846v1 · doi: 10.48550/arxiv.1309.4846 · pith_short_12: PICJ67NSMP4A · pith_short_16: PICJ67NSMP4ACUNP · pith_short_8: PICJ67NS

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/PICJ67NSMP4ACUNP6NBJQ6ORB3 \
  | 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: 7a049f7db263f80151aff3429879d10ecb76735f5d104fcc79809a10e0cad8df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b70b1bb1f0604498fdc385de3d16a6c1cda09a314627409609132afafcc2960",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2013-09-19T03:33:31Z",
    "title_canon_sha256": "5ab91aa8f1aa6bb520a154467f1871c31e999d1bdf4a3fd7075f2c7596aa4072"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4846",
    "kind": "arxiv",
    "version": 1
  }
}