Pith Number

pith:CF7DLFAL

pith:2013:CF7DLFALWRBVKM3J3GVERRNALZ

not attested not anchored not stored refs pending

Intersection Information based on Common Randomness

Christopher J. Ellison, Edwin K. P. Chong, James P. Crutchfield, Ryan G. James, Virgil Griffith

arxiv:1310.1538 v3 · 2013-10-06 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CF7DLFALWRBVKM3J3GVERRNALZ}

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	2026-05-18T01:55:34.161071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

117e35940bb443553369d9aa48c5a05e427eb71f67e3c3f5dcea4bc77a613494

Aliases

arxiv: 1310.1538 · arxiv_version: 1310.1538v3 · doi: 10.48550/arxiv.1310.1538 · pith_short_12: CF7DLFALWRBV · pith_short_16: CF7DLFALWRBVKM3J · pith_short_8: CF7DLFAL

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/CF7DLFALWRBVKM3J3GVERRNALZ \
  | 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: 117e35940bb443553369d9aa48c5a05e427eb71f67e3c3f5dcea4bc77a613494

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6851eebcdba3187d52a5fea414fbfe33553c991bb6db5d3a35bf301d345c68b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-10-06T04:44:03Z",
    "title_canon_sha256": "d9ce986fdf06714c2085929c7f2098fb004b2d9237e4fa86d7bf91bce0d99fb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.1538",
    "kind": "arxiv",
    "version": 3
  }
}