Pith Number

pith:JPWJ3Z37

pith:2018:JPWJ3Z37ZHLN3YPY3ZND4Q6AJW

not attested not anchored not stored refs pending

Human-Competitive Awards 2018

W. B. Langdon

arxiv:1810.09416 v1 · 2018-10-22 · cs.OH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JPWJ3Z37ZHLN3YPY3ZND4Q6AJW}

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	2026-05-18T00:02:40.150203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bec9de77fc9d6dde1f8de5a3e43c04d89bb27fee6efb5232dc2f7391978e5bf

Aliases

arxiv: 1810.09416 · arxiv_version: 1810.09416v1 · doi: 10.48550/arxiv.1810.09416 · pith_short_12: JPWJ3Z37ZHLN · pith_short_16: JPWJ3Z37ZHLN3YPY · pith_short_8: JPWJ3Z37

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/JPWJ3Z37ZHLN3YPY3ZND4Q6AJW \
  | 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: 4bec9de77fc9d6dde1f8de5a3e43c04d89bb27fee6efb5232dc2f7391978e5bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b336b234fb4e4be226afbb31d62261e88169e59aa9151d566597081952e4e560",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.OH",
    "submitted_at": "2018-10-22T17:36:09Z",
    "title_canon_sha256": "08439410fb8bad357e01eecb372addfcd492063ea12f5a7e83c86c40b8acaf47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.09416",
    "kind": "arxiv",
    "version": 1
  }
}