Pith Number

pith:VY7H6CMF

pith:2009:VY7H6CMFK5L2T2WWA2B3WHJ5UT

not attested not anchored not stored refs pending

An algorithm to relate protein surface roughness with local geometry of protein exterior shape

Anirban Banerji

arxiv:0902.2120 v2 · 2009-02-12 · q-bio.BM · 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{VY7H6CMFK5L2T2WWA2B3WHJ5UT}

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	2026-05-18T04:07:40.961998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae3e7f09855757a9ead60683bb1d3da4c51c8e2f42f1003f68254207661367ed

Aliases

arxiv: 0902.2120 · arxiv_version: 0902.2120v2 · doi: 10.48550/arxiv.0902.2120 · pith_short_12: VY7H6CMFK5L2 · pith_short_16: VY7H6CMFK5L2T2WW · pith_short_8: VY7H6CMF

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/VY7H6CMFK5L2T2WWA2B3WHJ5UT \
  | 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: ae3e7f09855757a9ead60683bb1d3da4c51c8e2f42f1003f68254207661367ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "031e414fb10f9bdcd85f47e2f72e636eedc1b804f5bbcbe8c17eb612e2edd56c",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.BM",
    "submitted_at": "2009-02-12T14:27:52Z",
    "title_canon_sha256": "1242894c068472dca2f4cd2bb3f67410bb1a8265ef5c7b90c57f449058eef731"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2120",
    "kind": "arxiv",
    "version": 2
  }
}