Pith Number

pith:DA2EAASE

pith:2009:DA2EAASE6ZBTRTZDTSWXJWIV5F

not attested not anchored not stored refs pending

Effects of Gamma Ray Bursts in Earth Biosphere

Douglas Galante, Jorge Horvath, Liuba Penate, Mayrene Guimaraes, Osmel Martin, Rolando Cardenas

arxiv:0911.2196 v1 · 2009-11-11 · astro-ph.EP · astro-ph.HE · 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{DA2EAASE6ZBTRTZDTSWXJWIV5F}

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	2026-05-18T02:34:11.212628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1834400244f64338cf239cad74d915e96205b2d12771d630c920ae2532f3c20c

Aliases

arxiv: 0911.2196 · arxiv_version: 0911.2196v1 · doi: 10.48550/arxiv.0911.2196 · pith_short_12: DA2EAASE6ZBT · pith_short_16: DA2EAASE6ZBTRTZD · pith_short_8: DA2EAASE

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/DA2EAASE6ZBTRTZDTSWXJWIV5F \
  | 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: 1834400244f64338cf239cad74d915e96205b2d12771d630c920ae2532f3c20c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82ada1b6ed796d31949680ccc08caa96baff987b6a38f859c9aa63da15361b4b",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-11-11T18:13:11Z",
    "title_canon_sha256": "325ff3d7e818d4bd622b5589f27147044e2d688ec43b965da537e697b0fb21a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2196",
    "kind": "arxiv",
    "version": 1
  }
}