Pith Number

pith:QPPDVTJR

pith:2026:QPPDVTJRLR5FXHKXDBWNJQILHJ

not attested not anchored not stored refs pending

Physics-Based Molecular Fingerprints from Spectral Graph Theory Provide Efficient Geometry-Aware Measures of Chemical Similarity

Ayleen Y. Farnood, Heather J. Kulik, Jacob W. Toney, Samir Darouich

arxiv:2608.05336 v1 · 2026-08-05 · physics.chem-ph · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPPDVTJRLR5FXHKXDBWNJQILHJ}

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	2026-08-07T00:47:02.025500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83de3acd315c7a5b9d57186cd4c10b3a7a0baeb2aed108d43a8c4f2f55835715

Aliases

arxiv: 2608.05336 · arxiv_version: 2608.05336v1 · doi: 10.48550/arxiv.2608.05336 · pith_short_12: QPPDVTJRLR5F · pith_short_16: QPPDVTJRLR5FXHKX · pith_short_8: QPPDVTJR

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/QPPDVTJRLR5FXHKXDBWNJQILHJ \
  | 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: 83de3acd315c7a5b9d57186cd4c10b3a7a0baeb2aed108d43a8c4f2f55835715

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75afae3d5a189b701b93bb24f6ebc5050f827886c7d4c5d1a3785887e2cbc79b",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2026-08-05T18:50:21Z",
    "title_canon_sha256": "ada794039e01d21e469467640d11cfc9a0fd8dc6a971eb83a7200fa556028857"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.05336",
    "kind": "arxiv",
    "version": 1
  }
}