Pith Number

pith:4QILUQ5Q

pith:2011:4QILUQ5QKPHZPRD7UVBDUESCOG

not attested not anchored not stored refs pending

Direct-coupling analysis of residue co-evolution captures native contacts across many protein families

Andrea Pagnani, Arianna Bertolino, Bryan Lunt, Chris Sander, Debora S. Marks, Faruck Morcos, Jose' N. Onuchic, Martin Weigt, Riccardo Zecchina, Terence Hwa

arxiv:1110.5223 v2 · 2011-10-24 · q-bio.QM · cond-mat.stat-mech · q-bio.BM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4QILUQ5QKPHZPRD7UVBDUESCOG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:02:52.457846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e410ba43b053cf97c47fa5423a1242719c047d2b3acfe6bdcd28aed5d35ba4d9

Aliases

arxiv: 1110.5223 · arxiv_version: 1110.5223v2 · doi: 10.48550/arxiv.1110.5223 · pith_short_12: 4QILUQ5QKPHZ · pith_short_16: 4QILUQ5QKPHZPRD7 · pith_short_8: 4QILUQ5Q

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/4QILUQ5QKPHZPRD7UVBDUESCOG \
  | 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: e410ba43b053cf97c47fa5423a1242719c047d2b3acfe6bdcd28aed5d35ba4d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0829430106e65377b5ab90c02c5b82ab6eaea0eeb527d8708bbe19341432659",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "q-bio.BM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2011-10-24T13:10:56Z",
    "title_canon_sha256": "f3fd53795e286f4670b39f5d846f158616bc30afea869663dc3d21f8f308d07c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.5223",
    "kind": "arxiv",
    "version": 2
  }
}