Pith Number

pith:MJREQNFW

pith:2009:MJREQNFWVDB3CRJLQCGRZPE2JW

not attested not anchored not stored refs pending

Non-extinction of a Fleming-Viot particle model

Krzysztof Burdzy, Mariusz Bieniek, Sam Finch

arxiv:0905.1999 v1 · 2009-05-13 · 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{MJREQNFWVDB3CRJLQCGRZPE2JW}

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	2026-07-04T15:42:27.496570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62624834b6a8c3b1452b808d1cbc9a4dabef3506136773f101574203f4fe219e

Aliases

arxiv: 0905.1999 · arxiv_version: 0905.1999v1 · doi: 10.48550/arxiv.0905.1999 · pith_short_12: MJREQNFWVDB3 · pith_short_16: MJREQNFWVDB3CRJL · pith_short_8: MJREQNFW

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/MJREQNFWVDB3CRJLQCGRZPE2JW \
  | 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: 62624834b6a8c3b1452b808d1cbc9a4dabef3506136773f101574203f4fe219e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77b257b4e64b4316b73b043fcf31ff86480b06797ff13f12f565cf52c553b396",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2009-05-13T02:05:50Z",
    "title_canon_sha256": "0c7deb53f039b7a5c477d8d964b3c08735e04fadb87a257a173f510982dda39e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1999",
    "kind": "arxiv",
    "version": 1
  }
}