Pith Number

pith:7ONWMUQQ

pith:2012:7ONWMUQQ7N244KBOZZKZD4QMV3

not attested not anchored not stored refs pending

From principal component to direct coupling analysis of coevolution in proteins: Low-eigenvalue modes are needed for structure prediction

Martin Weigt, Remi Monasson (LPTENS), Simona Cocco (LPS)

arxiv:1212.3281 v2 · 2012-12-13 · q-bio.BM · cond-mat.stat-mech · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ONWMUQQ7N244KBOZZKZD4QMV3}

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	2026-05-18T03:14:52.984882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb9b665210fb75ce282ece5591f20caec8d3e62fedb74c5dac4afc8d67d2bb5e

Aliases

arxiv: 1212.3281 · arxiv_version: 1212.3281v2 · doi: 10.48550/arxiv.1212.3281 · pith_short_12: 7ONWMUQQ7N24 · pith_short_16: 7ONWMUQQ7N244KBO · pith_short_8: 7ONWMUQQ

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/7ONWMUQQ7N244KBOZZKZD4QMV3 \
  | 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: fb9b665210fb75ce282ece5591f20caec8d3e62fedb74c5dac4afc8d67d2bb5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99e6f870b8a112ee898061619efbb588ea299a662a450e80e26c59c0d51d45dd",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.BM",
    "submitted_at": "2012-12-13T19:32:23Z",
    "title_canon_sha256": "6813de9b7c69ec0f3e48c79cf348cedba0b6ea01fdb9993d923d374da17c7e09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3281",
    "kind": "arxiv",
    "version": 2
  }
}