Pith Number

pith:VCWR6R4J

pith:2014:VCWR6R4JIUKHLNYN5F7VKSXNLT

not attested not anchored not stored refs pending

The existence and abundance of ghost ancestors in biparental populations

Mike Steel, Simon Gravel

arxiv:1401.3668 v2 · 2014-01-15 · 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{VCWR6R4JIUKHLNYN5F7VKSXNLT}

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	2026-05-18T02:25:56.322580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8ad1f4789451475b70de97f554aed5cef73ab82bbbe4d058fee11fd8e5ac644

Aliases

arxiv: 1401.3668 · arxiv_version: 1401.3668v2 · doi: 10.48550/arxiv.1401.3668 · pith_short_12: VCWR6R4JIUKH · pith_short_16: VCWR6R4JIUKHLNYN · pith_short_8: VCWR6R4J

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/VCWR6R4JIUKHLNYN5F7VKSXNLT \
  | 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: a8ad1f4789451475b70de97f554aed5cef73ab82bbbe4d058fee11fd8e5ac644

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5dec10f75ca77411e7137c1fcfc2da32550f66864dca76ad4a2ac223c404cb59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2014-01-15T17:00:33Z",
    "title_canon_sha256": "1d82099130e77b3bf951abdd5692ad4c8a69e892678d9f2c74e9c2ed5185c08b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.3668",
    "kind": "arxiv",
    "version": 2
  }
}