Pith Number

pith:7B2TWBB2

pith:2014:7B2TWBB2NP44VIRDTI7WE2KM2D

not attested not anchored not stored refs pending

The Coupon Collector's Problem Revisited: Generalizing the Double Dixie Cup Problem of Newman and Shepp

Aristides V. Doumas, Vassilis G. Papanicolaou

arxiv:1412.3626 v5 · 2014-12-11 · math.PR · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7B2TWBB2NP44VIRDTI7WE2KM2D}

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	2026-05-18T01:27:46.448393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8753b043a6bf9caa2239a3f62694cd0d0c9cffe684a30d9a8ec8ee6bcc45863

Aliases

arxiv: 1412.3626 · arxiv_version: 1412.3626v5 · doi: 10.48550/arxiv.1412.3626 · pith_short_12: 7B2TWBB2NP44 · pith_short_16: 7B2TWBB2NP44VIRD · pith_short_8: 7B2TWBB2

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/7B2TWBB2NP44VIRDTI7WE2KM2D \
  | 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: f8753b043a6bf9caa2239a3f62694cd0d0c9cffe684a30d9a8ec8ee6bcc45863

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcc5dd756504f7692a002459e52a018d36339b3bbcf60799498d8ba3844a4a48",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2014-12-11T12:20:09Z",
    "title_canon_sha256": "c8a603311f251413925a949c7af8fefdfdded8cbe2089d608ed88a132d563544"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.3626",
    "kind": "arxiv",
    "version": 5
  }
}