Pith Number

pith:4R7MTCRU

pith:2011:4R7MTCRUHJJO3SYPM6VBWV2VBH

not attested not anchored not stored refs pending

Passive and Driven Trends in the Evolution of Complexity

Larry Yaeger, Olaf Sporns, Virgil Griffith

arxiv:1112.4906 v1 · 2011-12-21 · cs.NE · 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{4R7MTCRUHJJO3SYPM6VBWV2VBH}

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	2026-05-18T04:05:56.936085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e47ec98a343a52edcb0f67aa1b575509ff4c8d45febb48e9d2cc22d749a8a758

Aliases

arxiv: 1112.4906 · arxiv_version: 1112.4906v1 · doi: 10.48550/arxiv.1112.4906 · pith_short_12: 4R7MTCRUHJJO · pith_short_16: 4R7MTCRUHJJO3SYP · pith_short_8: 4R7MTCRU

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/4R7MTCRUHJJO3SYPM6VBWV2VBH \
  | 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: e47ec98a343a52edcb0f67aa1b575509ff4c8d45febb48e9d2cc22d749a8a758

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44b9e138a9343652dd7c5092aff5b38dd124e4a42e6f9696226db3f547332170",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2011-12-21T01:57:31Z",
    "title_canon_sha256": "c4da97ac75e97171f9c5ead2d77ec9a9df18ea7334fe2721ca59804f07dba8d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4906",
    "kind": "arxiv",
    "version": 1
  }
}