Pith Number

pith:4UJDCN3H

pith:2013:4UJDCN3HNZEACXIEKCNEHDPO7J

not attested not anchored not stored refs pending

A non-linear irreversible thermodynamic perspective on organic pigment proliferation and biological evolution

Karo Michaelian

arxiv:1307.5924 v1 · 2013-07-23 · nlin.AO · physics.bio-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4UJDCN3HNZEACXIEKCNEHDPO7J}

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	2026-05-18T02:57:35.788837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5123137676e48015d04509a438deefa515a4d7e45f8588026bf293f910f825c

Aliases

arxiv: 1307.5924 · arxiv_version: 1307.5924v1 · doi: 10.48550/arxiv.1307.5924 · pith_short_12: 4UJDCN3HNZEA · pith_short_16: 4UJDCN3HNZEACXIE · pith_short_8: 4UJDCN3H

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/4UJDCN3HNZEACXIEKCNEHDPO7J \
  | 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: e5123137676e48015d04509a438deefa515a4d7e45f8588026bf293f910f825c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26c95042bddb4ea157dea143f6c1faeaadfb92ba2afdb7113bc0958a2fc887e4",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.AO",
    "submitted_at": "2013-07-23T02:15:09Z",
    "title_canon_sha256": "1590e0b2ade3fb9cd1a7992c05eff2ca504a55ba4a7dfb4b6bde017e9e92bc4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5924",
    "kind": "arxiv",
    "version": 1
  }
}