Pith Number

pith:BVBFE7SF

pith:2013:BVBFE7SFYC6MHMOEL7SUSFDG37

not attested not anchored not stored refs pending

Happy New Year Homo erectus? More evidence for interbreeding with archaics predating the modern human/Neanderthal split

Peter J. Waddell

arxiv:1312.7749 v1 · 2013-12-30 · 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{BVBFE7SFYC6MHMOEL7SUSFDG37}

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	2026-05-18T03:03:33.835459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d42527e45c0bcc3b1c45fe5491466dfdf766453457d9a7f30c9bd546bb1b798

Aliases

arxiv: 1312.7749 · arxiv_version: 1312.7749v1 · doi: 10.48550/arxiv.1312.7749 · pith_short_12: BVBFE7SFYC6M · pith_short_16: BVBFE7SFYC6MHMOE · pith_short_8: BVBFE7SF

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/BVBFE7SFYC6MHMOEL7SUSFDG37 \
  | 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: 0d42527e45c0bcc3b1c45fe5491466dfdf766453457d9a7f30c9bd546bb1b798

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89bd6190d4df53166f3b35cd6c3147250634b7bca6becaa890c5b57aec778ea8",
    "cross_cats_sorted": [
      "q-bio.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-12-30T15:53:42Z",
    "title_canon_sha256": "2de55f3558d84c58086dafb6bf3d0a82c1342c5082c3dbdd45d54c9312be8a1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.7749",
    "kind": "arxiv",
    "version": 1
  }
}