Pith Number

pith:OKKH5UMP

pith:2012:OKKH5UMP4EMOBUU35QR4KSK7UM

not attested not anchored not stored refs pending

The impact of climate change on the structure of Pleistocene mammoth steppe food webs

Herve Bocherens, Justin D. Yeakel, Paul L. Koch, Paulo R. Guimaraes Jr

arxiv:1211.4911 v2 · 2012-11-21 · 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{OKKH5UMP4EMOBUU35QR4KSK7UM}

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	2026-05-18T02:25:05.445578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72947ed18fe118e0d29bec23c5495fa332d3f46952572dca8a3c5aab6137df3b

Aliases

arxiv: 1211.4911 · arxiv_version: 1211.4911v2 · doi: 10.48550/arxiv.1211.4911 · pith_short_12: OKKH5UMP4EMO · pith_short_16: OKKH5UMP4EMOBUU3 · pith_short_8: OKKH5UMP

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/OKKH5UMP4EMOBUU35QR4KSK7UM \
  | 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: 72947ed18fe118e0d29bec23c5495fa332d3f46952572dca8a3c5aab6137df3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a346589ffcdeba199fa20f91c66ce9e458b09551b7cfa3b4ea02e2fc78ed0729",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2012-11-21T01:43:00Z",
    "title_canon_sha256": "96ee9a3ae293f1e0a76ca0d457f88365d90df6d986fcf3e618f4f5735e80e4e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4911",
    "kind": "arxiv",
    "version": 2
  }
}