Pith Number

pith:SVII2APM

pith:2013:SVII2APMX3QJYEQP7ZGNHZFPD6

not attested not anchored not stored refs pending

An empirical evaluation of four variants of a universal species-area relationship

Daniel J. McGlinn, Ethan P. White, Xiao Xiao

arxiv:1308.0655 v2 · 2013-08-03 · q-bio.QM · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SVII2APMX3QJYEQP7ZGNHZFPD6}

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	2026-05-18T03:07:33.967915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95508d01ecbee09c120ffe4cd3e4af1f9a7a8da7e77155b1711c5b47b0dc5ccd

Aliases

arxiv: 1308.0655 · arxiv_version: 1308.0655v2 · doi: 10.48550/arxiv.1308.0655 · pith_short_12: SVII2APMX3QJ · pith_short_16: SVII2APMX3QJYEQP · pith_short_8: SVII2APM

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/SVII2APMX3QJYEQP7ZGNHZFPD6 \
  | 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: 95508d01ecbee09c120ffe4cd3e4af1f9a7a8da7e77155b1711c5b47b0dc5ccd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "978a6ca21004ce0731178b2c3683a93e5e66fc4a3d9b77ecb50f7baf4b02956f",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2013-08-03T03:15:48Z",
    "title_canon_sha256": "e47e9c4c6ecceddef6d34f5f212104b8bf4afb9980dfd6dc2ed5cdebfcc94b04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0655",
    "kind": "arxiv",
    "version": 2
  }
}