Pith Number

pith:MS537EV4

pith:2022:MS537EV4LWRUX36A3HW3OG34ZP

not attested not anchored not stored refs pending

On the number of non-isomorphic choices on four elements

Alfio Giarlotta, Angelo Petralia, Stephen Watson

arxiv:2206.06840 v1 · 2022-06-14 · 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{MS537EV4LWRUX36A3HW3OG34ZP}

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	2026-07-05T07:59:12.975925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64bbbf92bc5da34befc0d9edb71b7ccbee24bb7f8c93922ccfc9c4f715e88428

Aliases

arxiv: 2206.06840 · arxiv_version: 2206.06840v1 · doi: 10.48550/arxiv.2206.06840 · pith_short_12: MS537EV4LWRU · pith_short_16: MS537EV4LWRUX36A · pith_short_8: MS537EV4

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/MS537EV4LWRUX36A3HW3OG34ZP \
  | 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: 64bbbf92bc5da34befc0d9edb71b7ccbee24bb7f8c93922ccfc9c4f715e88428

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0191a8a12416e259974417bfb50c131857b4931d5befa794da01bcbcea35611d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "econ.TH",
    "submitted_at": "2022-06-14T13:33:56Z",
    "title_canon_sha256": "e6b86109ace9d475ff9796a39f72ed7b178c6213d924b69928f82da58d4bd1ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.06840",
    "kind": "arxiv",
    "version": 1
  }
}