Pith Number

pith:YBXKKMKF

pith:2015:YBXKKMKF44KDMCIQW2UY2VNJUB

not attested not anchored not stored refs pending

The timing of life history events in presence of soft disturbances

Daniela Bertacchi, Fabio Zucca, Roberto Ambrosini

arxiv:1504.04272 v2 · 2015-04-16 · math.CA · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YBXKKMKF44KDMCIQW2UY2VNJUB}

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	2026-05-18T02:17:21.358972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c06ea53145e714360910b6a98d55a9a047bb2955fc3d0b6a05d16a9c4a29e756

Aliases

arxiv: 1504.04272 · arxiv_version: 1504.04272v2 · doi: 10.48550/arxiv.1504.04272 · pith_short_12: YBXKKMKF44KD · pith_short_16: YBXKKMKF44KDMCIQ · pith_short_8: YBXKKMKF

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/YBXKKMKF44KDMCIQW2UY2VNJUB \
  | 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: c06ea53145e714360910b6a98d55a9a047bb2955fc3d0b6a05d16a9c4a29e756

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3a6dc4f692a29f7f5c0b1144ac24fd19ed2f1efa8c95a94616bf8dff38691b9",
    "cross_cats_sorted": [
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-04-16T15:18:17Z",
    "title_canon_sha256": "b0f79085699879837ca03107f688c5a68e459540781891e8213c60cb1c6026e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04272",
    "kind": "arxiv",
    "version": 2
  }
}