Pith Number

pith:3CIZPFUI

pith:2009:3CIZPFUIAONVMM6L7WAV4C4SPW

not attested not anchored not stored refs pending

The peculiar solar composition and its possible relation to planet formation

Bengt Gustafsson (Upssala), David Yong (Stromlo), Jorge Melendez (CAUP), Martin Asplund (MPA)

arxiv:0909.2299 v1 · 2009-09-12 · astro-ph.SR · 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{3CIZPFUIAONVMM6L7WAV4C4SPW}

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	2026-05-18T02:34:30.284008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d891979688039b5633cbfd815e0b927dbfffbdb60fbac81e01cb8696bd65800e

Aliases

arxiv: 0909.2299 · arxiv_version: 0909.2299v1 · doi: 10.48550/arxiv.0909.2299 · pith_short_12: 3CIZPFUIAONV · pith_short_16: 3CIZPFUIAONVMM6L · pith_short_8: 3CIZPFUI

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/3CIZPFUIAONVMM6L7WAV4C4SPW \
  | 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: d891979688039b5633cbfd815e0b927dbfffbdb60fbac81e01cb8696bd65800e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a60449e796822e0af3ad816c977660dab206652025eb67c0be435ca418ef0a9",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-12T03:38:53Z",
    "title_canon_sha256": "61f731f7900ecde3ad84e2201889a02c031c2e9c2c3ff85edf596e5bdf74defc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2299",
    "kind": "arxiv",
    "version": 1
  }
}