Pith Number

pith:EDPCGZSC

pith:2023:EDPCGZSCJGFUPTDO7W5AS5IKBY

not attested not anchored not stored refs pending

Competition on the edge of an expanding population

Daniel W. Swartz, Hyunseok Lee, Kirill S. Korolev, Mehran Kardar

arxiv:2301.07246 v1 · 2023-01-18 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EDPCGZSCJGFUPTDO7W5AS5IKBY}

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	2026-07-05T05:34:06.939477Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20de236642498b47cc6efdba09750a0e02f3ac50f030f5adf84aaa4b52657556

Aliases

arxiv: 2301.07246 · arxiv_version: 2301.07246v1 · doi: 10.48550/arxiv.2301.07246 · pith_short_12: EDPCGZSCJGFU · pith_short_16: EDPCGZSCJGFUPTDO · pith_short_8: EDPCGZSC

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/EDPCGZSCJGFUPTDO7W5AS5IKBY \
  | 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: 20de236642498b47cc6efdba09750a0e02f3ac50f030f5adf84aaa4b52657556

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ba487989671e859669b57be375a5bbcbba138ec5070a4eb1eab66e377c36378",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2023-01-18T01:09:32Z",
    "title_canon_sha256": "68952d06e9096785bde514c50682ee4f7ee96804532e0bee3a291e6ce068fbd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.07246",
    "kind": "arxiv",
    "version": 1
  }
}