Pith Number

pith:O2ZOOVPT

pith:2009:O2ZOOVPT3A5IMEXA4YWABPLCKJ

not attested not anchored not stored refs pending

The use of ideas of Information Theory for studying "language" and intelligence in ants

Boris Ryabko, Zhanna Reznikova

arxiv:0912.4649 v1 · 2009-12-23 · cs.IT · cs.AI · math.IT · nlin.AO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2ZOOVPT3A5IMEXA4YWABPLCKJ}

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	2026-05-18T02:10:14.181202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76b2e755f3d83a8612e0e62c00bd625274bfff4c3648422f16477315acb98c88

Aliases

arxiv: 0912.4649 · arxiv_version: 0912.4649v1 · doi: 10.48550/arxiv.0912.4649 · pith_short_12: O2ZOOVPT3A5I · pith_short_16: O2ZOOVPT3A5IMEXA · pith_short_8: O2ZOOVPT

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/O2ZOOVPT3A5IMEXA4YWABPLCKJ \
  | 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: 76b2e755f3d83a8612e0e62c00bd625274bfff4c3648422f16477315acb98c88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6495b0b45fab184bfa61ad0fdcd6c3aa68474cd7185a881c8d91fd8e13919d98",
    "cross_cats_sorted": [
      "cs.AI",
      "math.IT",
      "nlin.AO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-12-23T14:12:47Z",
    "title_canon_sha256": "0a9b9207f08799c2527b012ed225b81e19daee0e72bdd93d1f797d38023b960d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4649",
    "kind": "arxiv",
    "version": 1
  }
}