Pith Number

pith:6UZBUHOU

pith:2019:6UZBUHOUE4SNBSZDHCZYJW42P5

not attested not anchored not stored refs pending

Evolving complexity: how tinkering shapes cells, software and ecological networks

Ricard Sole, Sergi Valverde

arxiv:1907.05528 v1 · 2019-07-12 · 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{6UZBUHOUE4SNBSZDHCZYJW42P5}

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	2026-05-17T23:40:48.039646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5321a1dd42724d0cb2338b384db9a7f43fc0b21a7e3605949bb04e740c87656

Aliases

arxiv: 1907.05528 · arxiv_version: 1907.05528v1 · doi: 10.48550/arxiv.1907.05528 · pith_short_12: 6UZBUHOUE4SN · pith_short_16: 6UZBUHOUE4SNBSZD · pith_short_8: 6UZBUHOU

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/6UZBUHOUE4SNBSZDHCZYJW42P5 \
  | 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: f5321a1dd42724d0cb2338b384db9a7f43fc0b21a7e3605949bb04e740c87656

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e6a9e1f7447c4f66aca87c9b7cb2f70970036f682fc4d2ddf7aefec03f41cae",
    "cross_cats_sorted": [
      "q-bio.MN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2019-07-12T00:21:38Z",
    "title_canon_sha256": "e30f1ac31d7466528b0fbb0e0577ac72b9ea55de47b79cc0a9a54e70f1a5fa87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05528",
    "kind": "arxiv",
    "version": 1
  }
}