Pith Number
pith:QZA3U7N2
pith:2011:QZA3U7N26CY5FZWNFT5SGN6B34
not attested
not anchored
not stored
refs pending
Coupons collecting with or without replacement, and with multipurpose coupons
arxiv:1107.1401 v3 · 2011-07-07 · math.PR · cs.DM
Add to your LaTeX paper
\usepackage{pith}
\pithnumber{QZA3U7N26CY5FZWNFT5SGN6B34}
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
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claim
4
Citations
5
Replications
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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 | 2026-05-18T03:01:56.684619Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
8641ba7dbaf0b1d2e6cd2cfb2337c1df24ddb541138bbe5d136c7c4fa15ba635
Aliases
· · · · ·Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/QZA3U7N26CY5FZWNFT5SGN6B34 \
| 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: 8641ba7dbaf0b1d2e6cd2cfb2337c1df24ddb541138bbe5d136c7c4fa15ba635
Canonical record JSON
{
"metadata": {
"abstract_canon_sha256": "c406976e746f8420cfa0814202142dec99a77f6bd58c57eba4755372ea9e8b66",
"cross_cats_sorted": [
"cs.DM"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"primary_cat": "math.PR",
"submitted_at": "2011-07-07T14:19:49Z",
"title_canon_sha256": "697f4a14552fd6b3cbe8a937e4bedcfcef45a09250fa30340edf7d345859d667"
},
"schema_version": "1.0",
"source": {
"id": "1107.1401",
"kind": "arxiv",
"version": 3
}
}