Pith Number

pith:QFZJNFNJ

pith:2013:QFZJNFNJQES2KBY4O4CEGYCMW3

not attested not anchored not stored refs pending

Update XML Views

Chengfei Liu, Jeffery Xu Yu, Jixue Liu, Theo Haerder

arxiv:1302.1923 v1 · 2013-02-08 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QFZJNFNJQES2KBY4O4CEGYCMW3}

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	2026-05-18T03:34:13.358121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81729695a98125a5071c770443604cb6e44406e5b1c190a96db4803fe4511b76

Aliases

arxiv: 1302.1923 · arxiv_version: 1302.1923v1 · doi: 10.48550/arxiv.1302.1923 · pith_short_12: QFZJNFNJQES2 · pith_short_16: QFZJNFNJQES2KBY4 · pith_short_8: QFZJNFNJ

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/QFZJNFNJQES2KBY4O4CEGYCMW3 \
  | 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: 81729695a98125a5071c770443604cb6e44406e5b1c190a96db4803fe4511b76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "656b3c4f87bad0b89bb4a59971fde59ce5534309874b2a1c9e7b6e75173a8172",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2013-02-08T01:22:54Z",
    "title_canon_sha256": "157e3a111199a191c6b47756d1cda4ed8e44b22f7f33e67bcfd75e8f158eb944"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1923",
    "kind": "arxiv",
    "version": 1
  }
}