Pith Number

pith:EPPQTPQE

pith:2011:EPPQTPQEDOAQWNW6IPQOHXBUUX

not attested not anchored not stored refs pending

Population size estimation based upon ratios of recapture probabilities

Dankmar B\"ohning, Irene Rocchetti, John Bunge

arxiv:1107.5423 v1 · 2011-07-27 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EPPQTPQEDOAQWNW6IPQOHXBUUX}

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	2026-05-18T04:16:52.050577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23df09be041b810b36de43e0e3dc34a5ccd96d40373c4c92d4c8fd6ef3819069

Aliases

arxiv: 1107.5423 · arxiv_version: 1107.5423v1 · doi: 10.48550/arxiv.1107.5423 · pith_short_12: EPPQTPQEDOAQ · pith_short_16: EPPQTPQEDOAQWNW6 · pith_short_8: EPPQTPQE

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/EPPQTPQEDOAQWNW6IPQOHXBUUX \
  | 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: 23df09be041b810b36de43e0e3dc34a5ccd96d40373c4c92d4c8fd6ef3819069

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c792731bc867c8513dd8b67ea1a8e760c0b508af95cbec38ed75d0ac1613118",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2011-07-27T09:43:21Z",
    "title_canon_sha256": "a08d23043bf1113fd08bef490a58c6ede651c7735e4a0b7b0acd3ab3b0bae633"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5423",
    "kind": "arxiv",
    "version": 1
  }
}