Pith Number

pith:2D4FCIWD

pith:2014:2D4FCIWDABLLTMWKEJ7W6FR5J6

not attested not anchored not stored refs pending

Plectoneme tip bubbles: Coupled denaturation and writhing in supercoiled DNA

Ard A. Louis, Christian Matek, Jonathan P. K. Doye, Thomas E. Ouldridge

arxiv:1404.2869 v1 · 2014-04-10 · cond-mat.soft · physics.bio-ph · physics.chem-ph · q-bio.BM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2D4FCIWDABLLTMWKEJ7W6FR5J6}

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	2026-05-18T01:55:43.194231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0f85122c30056b9b2ca227f6f163d4f847be168bc0146dde3a1947663a61565

Aliases

arxiv: 1404.2869 · arxiv_version: 1404.2869v1 · doi: 10.48550/arxiv.1404.2869 · pith_short_12: 2D4FCIWDABLL · pith_short_16: 2D4FCIWDABLLTMWK · pith_short_8: 2D4FCIWD

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/2D4FCIWDABLLTMWKEJ7W6FR5J6 \
  | 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: d0f85122c30056b9b2ca227f6f163d4f847be168bc0146dde3a1947663a61565

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "728b4341542240c1eb52b97b34601bde7d693d8f30e3e0a67dcf0f2540e1d189",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "physics.chem-ph",
      "q-bio.BM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2014-04-10T16:20:19Z",
    "title_canon_sha256": "4676dd2079ffbc92885404a3b3ba32dc2ebbf50641cc37fa963de103b5fb9105"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.2869",
    "kind": "arxiv",
    "version": 1
  }
}