Pith Number

pith:Z3P3FC5Q

pith:2022:Z3P3FC5Q7YLPOF6IFXXXLASZIB

not attested not anchored not stored refs pending

Daycare Matching in Japan: Transfers and Siblings

Daisuke Moriwaki, Makoto Yokoo, Yoji Tomita, Yoshihiro Takenami, Zhaohong Sun

arxiv:2212.02751 v1 · 2022-12-06 · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z3P3FC5Q7YLPOF6IFXXXLASZIB}

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	2026-07-05T05:22:33.946830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cedfb28bb0fe16f717c82def75825940749fbd0b99790ebe9601f1af23cb0496

Aliases

arxiv: 2212.02751 · arxiv_version: 2212.02751v1 · doi: 10.48550/arxiv.2212.02751 · pith_short_12: Z3P3FC5Q7YLP · pith_short_16: Z3P3FC5Q7YLPOF6I · pith_short_8: Z3P3FC5Q

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/Z3P3FC5Q7YLPOF6IFXXXLASZIB \
  | 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: cedfb28bb0fe16f717c82def75825940749fbd0b99790ebe9601f1af23cb0496

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc9e259f5b251c30985021fc732d9dd2b09c62310b3964e7bfb8fc41b8e063f2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2022-12-06T04:45:03Z",
    "title_canon_sha256": "6b459e33d23c1d60786969cd2635cbfcfb4ced8d5aaf636dd9068fcc6da6f0f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.02751",
    "kind": "arxiv",
    "version": 1
  }
}