Pith Number

pith:Q4WHO54Q

pith:2017:Q4WHO54Q6QYXZBZLOJWO57FAGK

not attested not anchored not stored refs pending

Darwinian Data Structure Selection

Earl Barr, Fan Wu, Leslie Kanthan, Lingbo Li, Michail Basios

arxiv:1706.03232 v3 · 2017-06-10 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q4WHO54Q6QYXZBZLOJWO57FAGK}

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	2026-05-18T00:09:10.054903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

872c777790f4317c872b726ceefca0328c122cac61ec87a0f6fd1144b02f2f2d

Aliases

arxiv: 1706.03232 · arxiv_version: 1706.03232v3 · doi: 10.48550/arxiv.1706.03232 · pith_short_12: Q4WHO54Q6QYX · pith_short_16: Q4WHO54Q6QYXZBZL · pith_short_8: Q4WHO54Q

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/Q4WHO54Q6QYXZBZLOJWO57FAGK \
  | 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: 872c777790f4317c872b726ceefca0328c122cac61ec87a0f6fd1144b02f2f2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d6720950a635044bcda861ed8b2240803e649dd2fe50a0ff1ec78c168115c72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2017-06-10T13:20:29Z",
    "title_canon_sha256": "36e394d4d1f31b627206ad713d68b4d3ad7fd8cbf47f226b1c9f7cde03590066"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.03232",
    "kind": "arxiv",
    "version": 3
  }
}