Pith Number

pith:Y3ZPTTXS

pith:2010:Y3ZPTTXSNGYFPW5HQPL3EDMFRK

not attested not anchored not stored refs pending

Greedy algorithm for stochastic matching is a 2-approximation

Marek Adamczyk

arxiv:1007.3036 v2 · 2010-07-18 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y3ZPTTXSNGYFPW5HQPL3EDMFRK}

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	2026-05-18T03:08:04.595106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6f2f9cef269b057dba783d7b20d858ab93c650b9bba3a6c4c278096dbf7121b

Aliases

arxiv: 1007.3036 · arxiv_version: 1007.3036v2 · doi: 10.48550/arxiv.1007.3036 · pith_short_12: Y3ZPTTXSNGYF · pith_short_16: Y3ZPTTXSNGYFPW5H · pith_short_8: Y3ZPTTXS

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/Y3ZPTTXSNGYFPW5HQPL3EDMFRK \
  | 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: c6f2f9cef269b057dba783d7b20d858ab93c650b9bba3a6c4c278096dbf7121b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "140e3cd81d4b1a4f2d17b3414718777b576eb5daeac73c36c688496a5bee801f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-07-18T20:23:19Z",
    "title_canon_sha256": "488d140fce370bad19046cebb78dac46911015a24b35e83ea1fbccc8578dd77c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.3036",
    "kind": "arxiv",
    "version": 2
  }
}