Pith Number

pith:CRG5ZSPR

pith:2014:CRG5ZSPRUURFWVSZ6DBHYI3LDG

not attested not anchored not stored refs pending

Human Communication Systems Evolve by Cultural Selection

Dale Barr, Monica Tamariz, Nicolas Fay, T Mark Ellison

arxiv:1406.7558 v1 · 2014-06-29 · cs.SI · cs.CL · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CRG5ZSPRUURFWVSZ6DBHYI3LDG}

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	2026-05-18T02:48:44.841551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

144ddcc9f1a5225b5659f0c27c236b198b8da8f8aa7ae3164babb383b24a5fec

Aliases

arxiv: 1406.7558 · arxiv_version: 1406.7558v1 · doi: 10.48550/arxiv.1406.7558 · pith_short_12: CRG5ZSPRUURF · pith_short_16: CRG5ZSPRUURFWVSZ · pith_short_8: CRG5ZSPR

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/CRG5ZSPRUURFWVSZ6DBHYI3LDG \
  | 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: 144ddcc9f1a5225b5659f0c27c236b198b8da8f8aa7ae3164babb383b24a5fec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3716d63e5bbb773c53aeec6f602a41c37cfe3991c87031ea9f274945033cb9b7",
    "cross_cats_sorted": [
      "cs.CL",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2014-06-29T20:16:55Z",
    "title_canon_sha256": "75a321306034a7a2162ab2a852dc793652ec0e490ab610df49c32b978e71e2c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7558",
    "kind": "arxiv",
    "version": 1
  }
}