Pith Number

pith:URT3DEXD

pith:2018:URT3DEXDDKYESGCFWKAZPENVA5

not attested not anchored not stored refs pending

Interdistrict School Choice: A Theory of Student Assignment

Fuhito Kojima, Isa E. Hafalir, M. Bumin Yenmez

arxiv:1812.11297 v2 · 2018-12-29 · econ.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{URT3DEXDDKYESGCFWKAZPENVA5}

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	2026-05-17T23:56:52.441435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a467b192e31ab0491845b2819791b507571373e25b3e7cce33c9da9a421a48b0

Aliases

arxiv: 1812.11297 · arxiv_version: 1812.11297v2 · doi: 10.48550/arxiv.1812.11297 · pith_short_12: URT3DEXDDKYE · pith_short_16: URT3DEXDDKYESGCF · pith_short_8: URT3DEXD

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/URT3DEXDDKYESGCFWKAZPENVA5 \
  | 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: a467b192e31ab0491845b2819791b507571373e25b3e7cce33c9da9a421a48b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b36a9989dabc13546f278f1d0bfdba5892d0abd9b60c8158be116a90c6cb89b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.TH",
    "submitted_at": "2018-12-29T06:35:36Z",
    "title_canon_sha256": "e059f5d5748023fe07ceb2ca705bee5133d297a75661a1134f22ac93799e4fa0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.11297",
    "kind": "arxiv",
    "version": 2
  }
}