Pith Number

pith:6WEHYRM2

pith:2007:6WEHYRM2KGOUWAQRZOJXFWCKNF

not attested not anchored not stored refs pending

Primordial Evolution in the Finitary Process Soup

James P. Crutchfield, Olof Gornerup

arxiv:0704.3771 v1 · 2007-04-28 · q-bio.PE · q-bio.MN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6WEHYRM2KGOUWAQRZOJXFWCKNF}

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	2026-05-18T00:57:32.323396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5887c459a519d4b0211cb9372d84a6976e747c12215e5307e27d68dd9480c6f

Aliases

arxiv: 0704.3771 · arxiv_version: 0704.3771v1 · doi: 10.48550/arxiv.0704.3771 · pith_short_12: 6WEHYRM2KGOU · pith_short_16: 6WEHYRM2KGOUWAQR · pith_short_8: 6WEHYRM2

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/6WEHYRM2KGOUWAQRZOJXFWCKNF \
  | 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: f5887c459a519d4b0211cb9372d84a6976e747c12215e5307e27d68dd9480c6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "171885d2612e5a211a6cce60729f8329cb267bf6a1301e8c05575c059fac239f",
    "cross_cats_sorted": [
      "q-bio.MN"
    ],
    "license": "",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2007-04-28T02:47:17Z",
    "title_canon_sha256": "b705d602c7aafe74ebd22f319413305fc46692b3d5dd3b5bd2418d3cea987e2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.3771",
    "kind": "arxiv",
    "version": 1
  }
}