Pith Number

pith:U2Z7FHG3

pith:2015:U2Z7FHG3YKBS6MNIR4RMABQZ4N

not attested not anchored not stored refs pending

Massive migration from the steppe is a source for Indo-European languages in Europe

Alan Cooper, Aleksandr Khokhlov, Alissa Mittnik, Anna Sz\'ecs\'enyi-Nagy, Bastien Llamas, Christina Roth, Christos Economou, David Anthony, David Reich, Dorcas Brown, Eadaoin Harney, Eszter B\'anffy, Fredrik Hallgren, Guido Brandt, Harald Meller, Iosif Lazaridis, Joachim Wahl, Johannes Krause, Kristin Stewardson, Kurt Werner Alt, Manuel A. Rojo Guerra, Matthias Meyer, Michael Francken, Michael Kunst, Nadin Rohland, Nick Patterson, Nicole Nicklisch, Oleg Mochalov, Pavel Kuznetsov, Qiaomei Fu, Rafael Garrido Pena, Roberto Risch, Sandra L. Pichler, Susanne Friederich, Susanne Nordenfelt, Swapan Mallick, Valery Khartanovich, Vayacheslav Moiseyev, Wolfgang Haak

arxiv:1502.02783 v1 · 2015-02-10 · 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{U2Z7FHG3YKBS6MNIR4RMABQZ4N}

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	2026-05-18T01:35:11.338771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6b3f29cdbc2832f31a88f22c00619e37bf620c7f92ea8e1b34958d142ebe606

Aliases

arxiv: 1502.02783 · arxiv_version: 1502.02783v1 · doi: 10.48550/arxiv.1502.02783 · pith_short_12: U2Z7FHG3YKBS · pith_short_16: U2Z7FHG3YKBS6MNI · pith_short_8: U2Z7FHG3

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/U2Z7FHG3YKBS6MNIR4RMABQZ4N \
  | 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: a6b3f29cdbc2832f31a88f22c00619e37bf620c7f92ea8e1b34958d142ebe606

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e845d68f29ed9db8bf8956775884476968066654ca514ae94607153bad795910",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2015-02-10T05:25:06Z",
    "title_canon_sha256": "341b0c1434c0b92478899e692f189ad727edae0e9acc0ce6157a7d09d673d08f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02783",
    "kind": "arxiv",
    "version": 1
  }
}