Pith Number

pith:B6D3IC3P

pith:2010:B6D3IC3PBMTH5FY3ILNG2UPMDQ

not attested not anchored not stored refs pending

The Structure of Genealogies in the Presence of Purifying Selection: A "Fitness-Class Coalescent"

Aleksandra M. Walczak, Joshua B. Plotkin, Lauren E. Nicolaisen, Michael M. Desai

arxiv:1010.2479 v2 · 2010-10-12 · 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{B6D3IC3PBMTH5FY3ILNG2UPMDQ}

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	2026-05-18T04:21:12.264134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f87b40b6f0b267e971b42da6d51ec1c116af61889d6db495f7e9871bb38ab21

Aliases

arxiv: 1010.2479 · arxiv_version: 1010.2479v2 · doi: 10.48550/arxiv.1010.2479 · pith_short_12: B6D3IC3PBMTH · pith_short_16: B6D3IC3PBMTH5FY3 · pith_short_8: B6D3IC3P

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/B6D3IC3PBMTH5FY3ILNG2UPMDQ \
  | 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: 0f87b40b6f0b267e971b42da6d51ec1c116af61889d6db495f7e9871bb38ab21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8204dd916a813f1bc82aa3c1f95a0b5d3c66cc98b2c7a83b1a76085174b21ff5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2010-10-12T19:38:35Z",
    "title_canon_sha256": "ccdcda806f7ed6955339c402f314be5e4764d78274a1eef918b5a75b77518088"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.2479",
    "kind": "arxiv",
    "version": 2
  }
}