Pith Number

pith:QCERDLBD

pith:2018:QCERDLBD5IPF4GYU5WNR26WTPU

not attested not anchored not stored refs pending

When physics meets biology: a less known Feynman

Adele Naddeo, Marco Di Mauro, Salvatore Esposito

arxiv:1805.03854 v1 · 2018-05-10 · physics.hist-ph · physics.bio-ph · physics.pop-ph · 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{QCERDLBD5IPF4GYU5WNR26WTPU}

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	2026-05-18T00:16:18.578440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

808911ac23ea1e5e1b14ed9b1d7ad37d09d198ee83887da5ad6e5d2e5a3915bb

Aliases

arxiv: 1805.03854 · arxiv_version: 1805.03854v1 · doi: 10.48550/arxiv.1805.03854 · pith_short_12: QCERDLBD5IPF · pith_short_16: QCERDLBD5IPF4GYU · pith_short_8: QCERDLBD

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/QCERDLBD5IPF4GYU5WNR26WTPU \
  | 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: 808911ac23ea1e5e1b14ed9b1d7ad37d09d198ee83887da5ad6e5d2e5a3915bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e7078628263eefc4673623b0e3532a03845751553cb86072c54b2fe168c9299",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "physics.pop-ph",
      "q-bio.OT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2018-05-10T06:59:00Z",
    "title_canon_sha256": "951f1d210b2281ea0e81bfc74dacd5cd2ef09eacd2edc60ce53253d02c95f7dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.03854",
    "kind": "arxiv",
    "version": 1
  }
}