Pith Number

pith:ZVPXXLEW

pith:2013:ZVPXXLEWCW3BU4DZSHLNNFETI2

not attested not anchored not stored refs pending

Waste Not, Want Not: Why Rarefying Microbiome Data is Inadmissible

Paul J. McMurdie, Susan Holmes

arxiv:1310.0424 v2 · 2013-10-01 · q-bio.QM · q-bio.GN · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZVPXXLEWCW3BU4DZSHLNNFETI2}

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	2026-05-18T01:47:17.083209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd5f7bac9615b61a707991d6d6949346b4d9bf3c38db7c5684b84b987039a0bc

Aliases

arxiv: 1310.0424 · arxiv_version: 1310.0424v2 · doi: 10.48550/arxiv.1310.0424 · pith_short_12: ZVPXXLEWCW3B · pith_short_16: ZVPXXLEWCW3BU4DZ · pith_short_8: ZVPXXLEW

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/ZVPXXLEWCW3BU4DZSHLNNFETI2 \
  | 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: cd5f7bac9615b61a707991d6d6949346b4d9bf3c38db7c5684b84b987039a0bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6822cd203898e0820b91fad3b3b3d42282e6ed40d5e4e6eecacdf8b38e14aa2",
    "cross_cats_sorted": [
      "q-bio.GN",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2013-10-01T18:54:24Z",
    "title_canon_sha256": "a5ca563133b51af324041ffa6a41038256b9d0f1f300ca5e09e8a37fffda2801"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.0424",
    "kind": "arxiv",
    "version": 2
  }
}