Pith Number

pith:NG53L56X

pith:2010:NG53L56XEHYOEIAMAERFW62757

not attested not anchored not stored refs pending

Palaeolithic extinctions and the Taurid Complex

W.M. Napier

arxiv:1003.0744 v1 · 2010-03-03 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NG53L56XEHYOEIAMAERFW62757}

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	2026-05-18T02:08:47.255409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69bbb5f7d721f0e2200c01225b7b5fefe62b7bb17a1b11f5fed0f2d658868925

Aliases

arxiv: 1003.0744 · arxiv_version: 1003.0744v1 · doi: 10.48550/arxiv.1003.0744 · pith_short_12: NG53L56XEHYO · pith_short_16: NG53L56XEHYOEIAM · pith_short_8: NG53L56X

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/NG53L56XEHYOEIAMAERFW62757 \
  | 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: 69bbb5f7d721f0e2200c01225b7b5fefe62b7bb17a1b11f5fed0f2d658868925

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80bf9df6c46bc61f76382a244f4c64ee5a7682e057f1eef6561c07d8ea3c356e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2010-03-03T07:49:53Z",
    "title_canon_sha256": "d5f8950d7e5f9da3e1c855a07d4bd59e453af9670de19e05660aa0ce781c38e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.0744",
    "kind": "arxiv",
    "version": 1
  }
}