Pith Number

pith:PHKNFBFD

pith:2009:PHKNFBFD6R2EK2AUFYMB3DE2SP

not attested not anchored not stored refs pending

Optimizing end-labeled free-solution electrophoresis by increasing the hydrodynamic friction of the drag-tag

Christian Holm, Gary W. Slater, Kai Grass

arxiv:0902.1889 v1 · 2009-02-11 · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PHKNFBFD6R2EK2AUFYMB3DE2SP}

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	2026-05-18T02:14:48.334217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79d4d284a3f4744568142e181d8c9a93e01e3294a052921ac355408d0ffd96d1

Aliases

arxiv: 0902.1889 · arxiv_version: 0902.1889v1 · doi: 10.48550/arxiv.0902.1889 · pith_short_12: PHKNFBFD6R2E · pith_short_16: PHKNFBFD6R2EK2AU · pith_short_8: PHKNFBFD

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/PHKNFBFD6R2EK2AUFYMB3DE2SP \
  | 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: 79d4d284a3f4744568142e181d8c9a93e01e3294a052921ac355408d0ffd96d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc70202aa14e47f877b230f01018f3825676191e041702c50fa693d0357b4b1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2009-02-11T13:49:31Z",
    "title_canon_sha256": "1ee9ade2b57c5bc9d6c911c2b52c67c198a8633f10054a84b26e890048bcd563"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1889",
    "kind": "arxiv",
    "version": 1
  }
}