Pith Number

pith:LZZTKAXA

pith:2012:LZZTKAXAI2ZEX2VJDCTXIKDMV2

not attested not anchored not stored refs pending

Presolar Grains from Novae: Evidence from Neon and Helium Isotopes in Comet Dust Collections

Robert D. Gehrz, Robert O. Pepin, Russell L. Palma, Sumner Starrfield

arxiv:1204.0489 v2 · 2012-04-02 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LZZTKAXAI2ZEX2VJDCTXIKDMV2}

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	2026-05-18T03:58:37.832986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e733502e046b24beaa918a774286caea9687e387632e7ebb3ed868626d9db24

Aliases

arxiv: 1204.0489 · arxiv_version: 1204.0489v2 · doi: 10.48550/arxiv.1204.0489 · pith_short_12: LZZTKAXAI2ZE · pith_short_16: LZZTKAXAI2ZEX2VJ · pith_short_8: LZZTKAXA

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/LZZTKAXAI2ZEX2VJDCTXIKDMV2 \
  | 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: 5e733502e046b24beaa918a774286caea9687e387632e7ebb3ed868626d9db24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10957ff83dd9b9101e4e5d46510f21b995ff8d0bf870f0fcc78ec7787d3d7b4d",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-04-02T18:25:21Z",
    "title_canon_sha256": "1c72ad1c2cc0afe3e59d55f6c186aef83aa34bfe72011b90ca453fa43d1a0b66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0489",
    "kind": "arxiv",
    "version": 2
  }
}