Pith Number

pith:KFHVUXLO

pith:2012:KFHVUXLOUAURDS6OZTHTCLRL3X

not attested not anchored not stored refs pending

Detailed compositional analysis of the heavily polluted DBZ white dwarf SDSS J073842.56+183509.06: A window on planet formation?

C. Melis, G. Fontaine, J. Bochanski, M. Kilic, P. Bergeron, P. Dufour

arxiv:1201.6252 v1 · 2012-01-30 · 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{KFHVUXLOUAURDS6OZTHTCLRL3X}

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	2026-05-18T01:58:38.118251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

514f5a5d6ea02911cbcecccf312e2bddf77279bc7de841ba52e78b1f64c07a9c

Aliases

arxiv: 1201.6252 · arxiv_version: 1201.6252v1 · doi: 10.48550/arxiv.1201.6252 · pith_short_12: KFHVUXLOUAUR · pith_short_16: KFHVUXLOUAURDS6O · pith_short_8: KFHVUXLO

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/KFHVUXLOUAURDS6OZTHTCLRL3X \
  | 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: 514f5a5d6ea02911cbcecccf312e2bddf77279bc7de841ba52e78b1f64c07a9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "298cb62d5c0baf17054eb521232a26995ac46697fc5820804318454837e222f2",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-30T15:26:02Z",
    "title_canon_sha256": "ddcc4b56927f737142fa65d080f0d7c2aba83778e75358343f81ae70730d5c7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6252",
    "kind": "arxiv",
    "version": 1
  }
}