Pith Number

pith:UGX7XIKY

pith:2015:UGX7XIKYJFK4URKQFKOBSMDAS2

not attested not anchored not stored refs pending

Greedy Matching: Guarantees and Limitations

Bert Besser, Matthias Poloczek

arxiv:1505.04198 v1 · 2015-05-15 · 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{UGX7XIKYJFK4URKQFKOBSMDAS2}

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	2026-05-18T02:07:26.074273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1affba1584955ca45502a9c19306096a6bea5203895dd1d5ca3155a71057b6a

Aliases

arxiv: 1505.04198 · arxiv_version: 1505.04198v1 · doi: 10.48550/arxiv.1505.04198 · pith_short_12: UGX7XIKYJFK4 · pith_short_16: UGX7XIKYJFK4URKQ · pith_short_8: UGX7XIKY

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/UGX7XIKYJFK4URKQFKOBSMDAS2 \
  | 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: a1affba1584955ca45502a9c19306096a6bea5203895dd1d5ca3155a71057b6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c316835c6f3da444057cde460a204777b00b33dd9342bda901cc79d314ec770",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-05-15T20:26:21Z",
    "title_canon_sha256": "4de15732d313731d703c4aed5e0d3b4b5bc21e986bf83fff7fbefb5159af3f4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04198",
    "kind": "arxiv",
    "version": 1
  }
}