Pith Number

pith:WY6M2GOU

pith:2013:WY6M2GOUIPKU7GE5AXCI46F5WT

not attested not anchored not stored refs pending

Why is combinatorial communication rare in the natural world, and why is language an exception to this trend?

Richard A. Blythe, Thomas C. Scott-Phillips

arxiv:1308.4780 v1 · 2013-08-22 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WY6M2GOUIPKU7GE5AXCI46F5WT}

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	2026-05-18T02:03:45.475398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b63ccd19d443d54f989d05c48e78bdb4cf950fb282526fd5ed9a3526dc14ee5e

Aliases

arxiv: 1308.4780 · arxiv_version: 1308.4780v1 · doi: 10.48550/arxiv.1308.4780 · pith_short_12: WY6M2GOUIPKU · pith_short_16: WY6M2GOUIPKU7GE5 · pith_short_8: WY6M2GOU

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/WY6M2GOUIPKU7GE5AXCI46F5WT \
  | 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: b63ccd19d443d54f989d05c48e78bdb4cf950fb282526fd5ed9a3526dc14ee5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fea46b1703d5088079e5c2c7b33fbc692d0711ad496cf4bdb29b67671d2eca0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-08-22T07:29:31Z",
    "title_canon_sha256": "5f24bfc8e044bd270b3c5d9da0788c9f289c068944d1a2f601c67049e590e236"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4780",
    "kind": "arxiv",
    "version": 1
  }
}