Pith Number

pith:GXFBMK7H

pith:2012:GXFBMK7HXJC27LSZ6QOITHGMSQ

not attested not anchored not stored refs pending

The tectonic cause of mass extinctions and the genomic contribution to biodiversification

Dirson Jian Li

arxiv:1212.4229 v1 · 2012-12-18 · q-bio.PE · q-bio.GN · 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{GXFBMK7HXJC27LSZ6QOITHGMSQ}

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	2026-05-18T02:19:06.412237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35ca162be7ba45afae59f41c899ccc940b9edc6916b4a9c2b6f79751f06e3034

Aliases

arxiv: 1212.4229 · arxiv_version: 1212.4229v1 · doi: 10.48550/arxiv.1212.4229 · pith_short_12: GXFBMK7HXJC2 · pith_short_16: GXFBMK7HXJC27LSZ · pith_short_8: GXFBMK7H

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/GXFBMK7HXJC27LSZ6QOITHGMSQ \
  | 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: 35ca162be7ba45afae59f41c899ccc940b9edc6916b4a9c2b6f79751f06e3034

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55c48a15038bf82db200c18989020c35c02b8bf97b8166efc8d476a80d2f4924",
    "cross_cats_sorted": [
      "q-bio.GN",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2012-12-18T05:03:02Z",
    "title_canon_sha256": "a1710033520944d65028e8e6584cca490ec1b1c67f7e29346474d83ebd07ccf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.4229",
    "kind": "arxiv",
    "version": 1
  }
}