Pith Number

pith:OQDS5HAE

pith:2014:OQDS5HAESTLS7P2RKV4NNM54IA

not attested not anchored not stored refs pending

Short note on the Sirenia disappearance from the Euro-North African realm during the Cenozoic: a link between climate and Supernovae?

Francisco Cabral, Goncalo Prista, Mario Cachao, Rui Jorge Agostinho

arxiv:1409.7589 v1 · 2014-09-26 · 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{OQDS5HAESTLS7P2RKV4NNM54IA}

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	2026-05-18T02:41:52.340969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74072e9c0494d72fbf515578d6b3bc403e28e7392e6bf8d155270b8abfac419d

Aliases

arxiv: 1409.7589 · arxiv_version: 1409.7589v1 · doi: 10.48550/arxiv.1409.7589 · pith_short_12: OQDS5HAESTLS · pith_short_16: OQDS5HAESTLS7P2R · pith_short_8: OQDS5HAE

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/OQDS5HAESTLS7P2RKV4NNM54IA \
  | 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: 74072e9c0494d72fbf515578d6b3bc403e28e7392e6bf8d155270b8abfac419d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "178c15eca32c364a189df331d06a950bcf8fa81c20ac900e7bd7de45ce636820",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2014-09-26T14:25:27Z",
    "title_canon_sha256": "a11a1b3ae832f911d6091742054a767f02446df592a5680f9756ff639b6fb90f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7589",
    "kind": "arxiv",
    "version": 1
  }
}