Pith Number

pith:QEFE2TSC

pith:2014:QEFE2TSCVVMSDSVSR7UQOUJIXQ

not attested not anchored not stored refs pending

YFitter: Maximum likelihood assignment of Y chromosome haplogroups from low-coverage sequence data

Chris Tyler-Smith, Jeff Barrett, Luke Jostins, Qasim Ayub, Richard Durbin, Shane McCarthy, Yali Xu

arxiv:1407.7988 v1 · 2014-07-30 · q-bio.PE · q-bio.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QEFE2TSCVVMSDSVSR7UQOUJIXQ}

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	2026-05-18T02:46:13.893028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

810a4d4e42ad5921cab28fe9075128bc2ccea13bfc399654a814607f9b5c0e36

Aliases

arxiv: 1407.7988 · arxiv_version: 1407.7988v1 · doi: 10.48550/arxiv.1407.7988 · pith_short_12: QEFE2TSCVVMS · pith_short_16: QEFE2TSCVVMSDSVS · pith_short_8: QEFE2TSC

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/QEFE2TSCVVMSDSVSR7UQOUJIXQ \
  | 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: 810a4d4e42ad5921cab28fe9075128bc2ccea13bfc399654a814607f9b5c0e36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d45e55b16646a3486a3d8a3e72a8455baa719088d0905cefc25498a2efa55c97",
    "cross_cats_sorted": [
      "q-bio.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2014-07-30T10:20:44Z",
    "title_canon_sha256": "da1e99d0e07ac8f5c9407574f010d4e35a4fcb1b79848b02cfb4aaaf306b9b50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7988",
    "kind": "arxiv",
    "version": 1
  }
}