Pith Number

pith:7CKNGZFS

pith:2026:7CKNGZFSHYZ5FMSYI4WWBCPPAI

not attested not anchored not stored refs pending

Screening for Choice Sets

Tan Gan, Yingkai Li

arxiv:2601.15580 v2 · 2026-01-22 · econ.TH · 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{7CKNGZFSHYZ5FMSYI4WWBCPPAI}

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	2026-06-11T01:10:32.012212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f894d364b23e33d2b258472d6089ef021c16828eeb42c6929a67cb412171b5a7

Aliases

arxiv: 2601.15580 · arxiv_version: 2601.15580v2 · doi: 10.48550/arxiv.2601.15580 · pith_short_12: 7CKNGZFSHYZ5 · pith_short_16: 7CKNGZFSHYZ5FMSY · pith_short_8: 7CKNGZFS

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/7CKNGZFSHYZ5FMSYI4WWBCPPAI \
  | 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: f894d364b23e33d2b258472d6089ef021c16828eeb42c6929a67cb412171b5a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cad179b8e83e52793b73f812782d6e1fc0bd64827af2b2bf9c7157c21107c46",
    "cross_cats_sorted": [
      "cs.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.TH",
    "submitted_at": "2026-01-22T02:00:34Z",
    "title_canon_sha256": "8eb268d5d1edd40189b311203886f59fea672c4ea759b7961d9653a506ae43b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.15580",
    "kind": "arxiv",
    "version": 2
  }
}