Pith Number

pith:E5FIDF2C

pith:2025:E5FIDF2CQ2ITXPIO3QUFAR3OOM

not attested not anchored not stored refs pending

Evolutionary ecology of words

Reiji Suzuki, Takaya Arita

arxiv:2505.05863 v1 · 2025-05-09 · q-bio.PE · cs.AI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E5FIDF2CQ2ITXPIO3QUFAR3OOM}

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	2026-07-05T11:00:48.956893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

274a81974286913bbd0edc2850476e73180ed546939f3e00c628117efcb63809

Aliases

arxiv: 2505.05863 · arxiv_version: 2505.05863v1 · doi: 10.48550/arxiv.2505.05863 · pith_short_12: E5FIDF2CQ2IT · pith_short_16: E5FIDF2CQ2ITXPIO · pith_short_8: E5FIDF2C

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/E5FIDF2CQ2ITXPIO3QUFAR3OOM \
  | 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: 274a81974286913bbd0edc2850476e73180ed546939f3e00c628117efcb63809

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15b4062f7dbf1252763198e8b6bf3b5e2c4b8f2696eda17a6273d52a77227582",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2025-05-09T07:57:10Z",
    "title_canon_sha256": "2780d47e7f68ccef0a45c23a9e87456e016fccb82f4c21e538072315179177df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.05863",
    "kind": "arxiv",
    "version": 1
  }
}