Pith Number

pith:XLWJ4CKO

pith:2011:XLWJ4CKOOFU76IO7RMW35TPUTA

not attested not anchored not stored refs pending

Extremely rare interbreeding events can explain Neanderthal DNA in modern humans

Armando G. M. Neves, Maurizio Serva

arxiv:1103.4621 v2 · 2011-03-23 · q-bio.PE · math-ph · math.MP · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XLWJ4CKOOFU76IO7RMW35TPUTA}

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	2026-05-18T04:20:49.556260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

baec9e094e7169ff21df8b2dbecdf498157b30e0a1e6da302e843ad6a840c2c8

Aliases

arxiv: 1103.4621 · arxiv_version: 1103.4621v2 · doi: 10.48550/arxiv.1103.4621 · pith_short_12: XLWJ4CKOOFU7 · pith_short_16: XLWJ4CKOOFU76IO7 · pith_short_8: XLWJ4CKO

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/XLWJ4CKOOFU76IO7RMW35TPUTA \
  | 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: baec9e094e7169ff21df8b2dbecdf498157b30e0a1e6da302e843ad6a840c2c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c626c4bbf05c27b6c8999601f24750bd01baea4707fbbc1fdd0d0d8f058ecd32",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2011-03-23T20:23:11Z",
    "title_canon_sha256": "20390f6610bcaf16f09fb83ef932e8243655f06c678f20e7748491ac18c234c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4621",
    "kind": "arxiv",
    "version": 2
  }
}