Pith Number

pith:5UPNAHDZ

pith:2025:5UPNAHDZL5DGODCJ3ZGKYT4OBE

not attested not anchored not stored refs pending

Algorithmic hardness of the partition function for nucleic acid strands

Ahmed Shalaby, Damien Woods, Gwendal Ducloz

arxiv:2506.19756 v1 · 2025-06-24 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5UPNAHDZL5DGODCJ3ZGKYT4OBE}

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	2026-07-05T11:26:38.234979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed1ed01c795f46670c49de4cac4f8e0918722e23e2a12c496b107c08b99ec45d

Aliases

arxiv: 2506.19756 · arxiv_version: 2506.19756v1 · doi: 10.48550/arxiv.2506.19756 · pith_short_12: 5UPNAHDZL5DG · pith_short_16: 5UPNAHDZL5DGODCJ · pith_short_8: 5UPNAHDZ

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/5UPNAHDZL5DGODCJ3ZGKYT4OBE \
  | 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: ed1ed01c795f46670c49de4cac4f8e0918722e23e2a12c496b107c08b99ec45d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e434b8fba84b23c4e4e8a722007f8d10f4f2579311f1fd932d5243518b01ca3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2025-06-24T16:16:12Z",
    "title_canon_sha256": "f67b672bf3fb2b2082a9509deef5a955affb37b38fbe655427bc3c282da24625"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.19756",
    "kind": "arxiv",
    "version": 1
  }
}