Pith Number

pith:JQRHKCXP

pith:2017:JQRHKCXP6YMLV2ERQ45JFTJIU4

not attested not anchored not stored refs pending

The thermodynamic efficiency of computations made in cells across the range of life

Christopher P. Kempes, David Wolpert, Juan P\'erez-Mercader, Zachary Cohen

arxiv:1706.05043 v1 · 2017-06-15 · q-bio.OT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JQRHKCXP6YMLV2ERQ45JFTJIU4}

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	2026-05-18T00:24:17.322403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c22750aeff618bae891873a92cd28a700a79fc4f1246a5386b7344308cc0d18

Aliases

arxiv: 1706.05043 · arxiv_version: 1706.05043v1 · doi: 10.48550/arxiv.1706.05043 · pith_short_12: JQRHKCXP6YML · pith_short_16: JQRHKCXP6YMLV2ER · pith_short_8: JQRHKCXP

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/JQRHKCXP6YMLV2ERQ45JFTJIU4 \
  | 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: 4c22750aeff618bae891873a92cd28a700a79fc4f1246a5386b7344308cc0d18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d4c46b8f56fb1ee8c96da0c3c431bb981225e4ba468bbc1201b25883a2386ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.OT",
    "submitted_at": "2017-06-15T18:58:00Z",
    "title_canon_sha256": "8965b6471e4a603c0f197637c1c3b4dcf9ced04559476f7fef8fe790ba2adaf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.05043",
    "kind": "arxiv",
    "version": 1
  }
}