Pith Number

pith:TXIJMEKD

pith:2010:TXIJMEKDQOE2AHP2OCDDNLD7DR

not attested not anchored not stored refs pending

Computational and Biological Analogies for Understanding Fine-Tuned Parameters in Physics

Clement Vidal

arxiv:1002.3905 v1 · 2010-02-20 · physics.gen-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{TXIJMEKDQOE2AHP2OCDDNLD7DR}

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	2026-05-18T03:37:42.068951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9dd09611438389a01dfa708636ac7f1c6eb3edef1d822dd85b1738b7ec472ca6

Aliases

arxiv: 1002.3905 · arxiv_version: 1002.3905v1 · doi: 10.48550/arxiv.1002.3905 · pith_short_12: TXIJMEKDQOE2 · pith_short_16: TXIJMEKDQOE2AHP2 · pith_short_8: TXIJMEKD

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/TXIJMEKDQOE2AHP2OCDDNLD7DR \
  | 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: 9dd09611438389a01dfa708636ac7f1c6eb3edef1d822dd85b1738b7ec472ca6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2cc23f32d8c04087c40ede845d73afb6bffeaf894292764a74f5c96478d9a495",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2010-02-20T15:47:55Z",
    "title_canon_sha256": "1e6ec9e0e221c07e0f39295d61e2d7234411d36af19dd39f580a61d71bdacb88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3905",
    "kind": "arxiv",
    "version": 1
  }
}