Pith Number

pith:4KSPQLLU

pith:2025:4KSPQLLUDI7HB6CSNGJXWYJGHS

not attested not anchored not stored refs pending

The Cognate Data Bottleneck in Language Phylogenetics

Alexandros Stamatakis, Luise H\"auser

arxiv:2507.00911 v1 · 2025-07-01 · cs.CL · 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{4KSPQLLUDI7HB6CSNGJXWYJGHS}

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	2026-07-05T11:30:17.417128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2a4f82d741a3e70f85269937b61263c897283d00e5dde639ced41a456e63f1c

Aliases

arxiv: 2507.00911 · arxiv_version: 2507.00911v1 · doi: 10.48550/arxiv.2507.00911 · pith_short_12: 4KSPQLLUDI7H · pith_short_16: 4KSPQLLUDI7HB6CS · pith_short_8: 4KSPQLLU

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/4KSPQLLUDI7HB6CSNGJXWYJGHS \
  | 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: e2a4f82d741a3e70f85269937b61263c897283d00e5dde639ced41a456e63f1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fe85a5a87de98deafca06dad3fed5decdeba66a2a58d4bdde1f752c79c8514d",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-07-01T16:14:20Z",
    "title_canon_sha256": "82022f1ba7b19e1dda47b3581e07459a3e76970be04496d6e9207fccde67f345"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.00911",
    "kind": "arxiv",
    "version": 1
  }
}