Pith Number

pith:SREMHJK7

pith:2020:SREMHJK7GJYUTIOQ7SUYKXEUOU

not attested not anchored not stored refs pending

Kidney Exchange with Inhomogeneous Edge Existence Uncertainty

Duncan C McElfresh, Hoda Bidkhori, John P Dickerson, Ke Ren

arxiv:2007.03191 v1 · 2020-07-07 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SREMHJK7GJYUTIOQ7SUYKXEUOU}

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	2026-07-05T01:17:00.479788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9448c3a55f327149a1d0fca9855c94752b2da4a7d261a87a5d2da9292f35b46d

Aliases

arxiv: 2007.03191 · arxiv_version: 2007.03191v1 · doi: 10.48550/arxiv.2007.03191 · pith_short_12: SREMHJK7GJYU · pith_short_16: SREMHJK7GJYUTIOQ · pith_short_8: SREMHJK7

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/SREMHJK7GJYUTIOQ7SUYKXEUOU \
  | 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: 9448c3a55f327149a1d0fca9855c94752b2da4a7d261a87a5d2da9292f35b46d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45ae54107a989a146dbeb4e889a3e5bfa7b4556f65006150af83dd065bade37c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2020-07-07T04:08:39Z",
    "title_canon_sha256": "ff02dd3f188f16738c8fae646f541a6152544835cdd0920b713ab81e59f3a52e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.03191",
    "kind": "arxiv",
    "version": 1
  }
}